15204201040 has 80 divisors (see below), whose sum is σ = 40641898752. Its totient is φ = 5181622272.

The previous prime is 15204200983. The next prime is 15204201043. The reversal of 15204201040 is 4010240251.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 15204200999 and 15204201017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15204201043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12232 + ... + 174808.

Almost surely, 2^15204201040 is an apocalyptic number.

15204201040 is a gapful number since it is divisible by the number (10) 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 15204201040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20320949376).

15204201040 is an abundant number, since it is smaller than the sum of its proper divisors (25437697712).

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

15204201040 is a wasteful number, since it uses less digits than its factorization.

15204201040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162764 (or 162758 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 15204201040 its reverse (4010240251), we get a palindrome (19214441291).

The spelling of 15204201040 in words is "fifteen billion, two hundred four million, two hundred one thousand, forty".