2151540025324 has 36 divisors (see below), whose sum is σ = 3900189149584. Its totient is φ = 1038492641088.

The previous prime is 2151540025307. The next prime is 2151540025331. The reversal of 2151540025324 is 4235200451512.

It is a happy number.

It is a super-2 number, since 2×2151540025324² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2151540025324.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20255497 + ... + 20361439.

Almost surely, 2^{2151540025324} is an apocalyptic number.

It is an amenable number.

2151540025324 is a deficient number, since it is larger than the sum of its proper divisors (1748649124260).

2151540025324 is a wasteful number, since it uses less digits than its factorization.

2151540025324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112042 (or 112011 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 2151540025324 its reverse (4235200451512), we get a palindrome (6386740476836).

The spelling of 2151540025324 in words is "two trillion, one hundred fifty-one billion, five hundred forty million, twenty-five thousand, three hundred twenty-four".