2251564146104 has 96 divisors (see below), whose sum is σ = 5355648043200. Its totient is φ = 879453469440.

The previous prime is 2251564146067. The next prime is 2251564146113. The reversal of 2251564146104 is 4016414651522.

It is a super-2 number, since 2×2251564146104² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2393807 + ... + 3198974.

It is an arithmetic number, because the mean of its divisors is an integer number (55788000450).

Almost surely, 2^{2251564146104} is an apocalyptic number.

It is an amenable number.

2251564146104 is an abundant number, since it is smaller than the sum of its proper divisors (3104083897096).

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

2251564146104 is a wasteful number, since it uses less digits than its factorization.

2251564146104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592893 (or 5592882 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

Adding to 2251564146104 its reverse (4016414651522), we get a palindrome (6267978797626).

The spelling of 2251564146104 in words is "two trillion, two hundred fifty-one billion, five hundred sixty-four million, one hundred forty-six thousand, one hundred four".