15654651552 has 576 divisors, whose sum is σ = 52120164096. Its totient is φ = 4428103680.

The previous prime is 15654651547. The next prime is 15654651563. The reversal of 15654651552 is 25515645651.

It is a happy number.

15654651552 is a `hidden beast` number, since 1 + 5 + 6 + 5 + 46 + 51 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15654651498 and 15654651507.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 256633602 + ... + 256633662.

It is an arithmetic number, because the mean of its divisors is an integer number (90486396).

Almost surely, 2^15654651552 is an apocalyptic number.

15654651552 is a gapful number since it is divisible by the number (12) 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 15654651552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26060082048).

15654651552 is an abundant number, since it is smaller than the sum of its proper divisors (36465512544).

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

15654651552 is a wasteful number, since it uses less digits than its factorization.

15654651552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 202 counting only the distinct ones).

The product of its digits is 900000, while the sum is 45.

The spelling of 15654651552 in words is "fifteen billion, six hundred fifty-four million, six hundred fifty-one thousand, five hundred fifty-two".