102450640456 has 64 divisors (see below), whose sum is σ = 207578142720. Its totient is φ = 47285272320.

The previous prime is 102450640441. The next prime is 102450640483. The reversal of 102450640456 is 654046054201.

It is a super-2 number, since 2×102450640456² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508761 + ... + 680983.

It is an arithmetic number, because the mean of its divisors is an integer number (3243408480).

Almost surely, 2^102450640456 is an apocalyptic number.

It is an amenable number.

102450640456 is an abundant number, since it is smaller than the sum of its proper divisors (105127502264).

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

102450640456 is a wasteful number, since it uses less digits than its factorization.

102450640456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172366 (or 172362 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 102450640456 its reverse (654046054201), we get a palindrome (756496694657).

The spelling of 102450640456 in words is "one hundred two billion, four hundred fifty million, six hundred forty thousand, four hundred fifty-six".