102662640344 has 32 divisors (see below), whose sum is σ = 213434263440. Its totient is φ = 45899836800.

The previous prime is 102662640313. The next prime is 102662640349. The reversal of 102662640344 is 443046266201.

It is a junction number, because it is equal to n+sod(n) for n = 102662640298 and 102662640307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102662640349) 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, 9557099 + ... + 9567834.

Almost surely, 2^102662640344 is an apocalyptic number.

It is an amenable number.

102662640344 is an abundant number, since it is smaller than the sum of its proper divisors (110771623096).

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

102662640344 is a wasteful number, since it uses less digits than its factorization.

102662640344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19125011 (or 19125007 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 102662640344 in words is "one hundred two billion, six hundred sixty-two million, six hundred forty thousand, three hundred forty-four".