21552374031310 has 16 divisors (see below), whose sum is σ = 39099739977216. Its totient is φ = 8553068119008.

The previous prime is 21552374031301. The next prime is 21552374031311. The reversal of 21552374031310 is 1313047325512.

It is a super-2 number, since 2×21552374031310² (a number of 27 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 21552374031310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21552374031311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8485185357 + ... + 8485187896.

It is an arithmetic number, because the mean of its divisors is an integer number (2443733748576).

Almost surely, 2^{21552374031310} is an apocalyptic number.

21552374031310 is a deficient number, since it is larger than the sum of its proper divisors (17547365945906).

21552374031310 is a wasteful number, since it uses less digits than its factorization.

21552374031310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16970373387.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 21552374031310 in words is "twenty-one trillion, five hundred fifty-two billion, three hundred seventy-four million, thirty-one thousand, three hundred ten".