1511516240432 has 40 divisors (see below), whose sum is σ = 3202420656960. Its totient is φ = 685413058880.

The previous prime is 1511516240413. The next prime is 1511516240449. The reversal of 1511516240432 is 2340426151151.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1511516240392 and 1511516240401.

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, 10174658 + ... + 10322145.

It is an arithmetic number, because the mean of its divisors is an integer number (80060516424).

Almost surely, 2^{1511516240432} is an apocalyptic number.

It is an amenable number.

1511516240432 is an abundant number, since it is smaller than the sum of its proper divisors (1690904416528).

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

1511516240432 is a wasteful number, since it uses less digits than its factorization.

1511516240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20497241 (or 20497235 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 1511516240432 in words is "one trillion, five hundred eleven billion, five hundred sixteen million, two hundred forty thousand, four hundred thirty-two".