102606656 has 28 divisors (see below), whose sum is σ = 204528420. Its totient is φ = 51072000.

The previous prime is 102606649. The next prime is 102606659. The reversal of 102606656 is 656606201.

It can be written as a sum of positive squares in 2 ways, for example, as 73273600 + 29333056 = 8560^2 + 5416^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102606659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11156 + ... + 18156.

Almost surely, 2^102606656 is an apocalyptic number.

102606656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102606656 is a deficient number, since it is larger than the sum of its proper divisors (101921764).

102606656 is an equidigital number, since it uses as much as digits as its factorization.

102606656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242 (or 7232 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 102606656 is about 10129.4943605296. The cubic root of 102606656 is about 468.1573484110.

The spelling of 102606656 in words is "one hundred two million, six hundred six thousand, six hundred fifty-six".