102640140360 has 128 divisors (see below), whose sum is σ = 346820832000. Its totient is φ = 26995742208.

The previous prime is 102640140341. The next prime is 102640140391. The reversal of 102640140360 is 63041046201.

102640140360 is a `hidden beast` number, since 1 + 0 + 2 + 640 + 14 + 0 + 3 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 572100 + ... + 729779.

It is an arithmetic number, because the mean of its divisors is an integer number (2709537750).

Almost surely, 2^102640140360 is an apocalyptic number.

102640140360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102640140360 is an abundant number, since it is smaller than the sum of its proper divisors (244180691640).

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

102640140360 is a wasteful number, since it uses less digits than its factorization.

102640140360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301972 (or 1301962 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 102640140360 its reverse (63041046201), we get a palindrome (165681186561).

The spelling of 102640140360 in words is "one hundred two billion, six hundred forty million, one hundred forty thousand, three hundred sixty".