102655805664 has 48 divisors (see below), whose sum is σ = 271410168960. Its totient is φ = 33972420480.

The previous prime is 102655805663. The next prime is 102655805687. The reversal of 102655805664 is 466508556201.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102655805663) 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, 3833172 + ... + 3859859.

It is an arithmetic number, because the mean of its divisors is an integer number (5654378520).

Almost surely, 2^102655805664 is an apocalyptic number.

It is an amenable number.

102655805664 is an abundant number, since it is smaller than the sum of its proper divisors (168754363296).

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

102655805664 is a wasteful number, since it uses less digits than its factorization.

102655805664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7693183 (or 7693175 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 102655805664 in words is "one hundred two billion, six hundred fifty-five million, eight hundred five thousand, six hundred sixty-four".