15654196404 has 540 divisors, whose sum is σ = 54322565220. Its totient is φ = 3911846400.

The previous prime is 15654196351. The next prime is 15654196409. The reversal of 15654196404 is 40469145651.

15654196404 is a `hidden beast` number, since 1 + 5 + 6 + 54 + 196 + 404 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9412880400 + 6241316004 = 97020^2 + 79002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15654196404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15654196409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 55708744 + ... + 55709024.

It is an arithmetic number, because the mean of its divisors is an integer number (100597343).

Almost surely, 2^15654196404 is an apocalyptic number.

15654196404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15654196404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27161282610).

15654196404 is an abundant number, since it is smaller than the sum of its proper divisors (38668368816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15654196404 is a wasteful number, since it uses less digits than its factorization.

15654196404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 15654196404 in words is "fifteen billion, six hundred fifty-four million, one hundred ninety-six thousand, four hundred four".