15040100032 has 56 divisors (see below), whose sum is σ = 30265725600. Its totient is φ = 7414573056.

The previous prime is 15040100029. The next prime is 15040100057. The reversal of 15040100032 is 23000104051.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 15040099979 and 15040100015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121069 + ... + 2128147.

Almost surely, 2^15040100032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15040100032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15132862800).

15040100032 is an abundant number, since it is smaller than the sum of its proper divisors (15225625568).

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

15040100032 is an equidigital number, since it uses as much as digits as its factorization.

15040100032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553 (or 7543 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 15040100032 its reverse (23000104051), we get a palindrome (38040204083).

The spelling of 15040100032 in words is "fifteen billion, forty million, one hundred thousand, thirty-two".