61100656 has 20 divisors (see below), whose sum is σ = 124613800. Its totient is φ = 28942272.

The previous prime is 61100629. The next prime is 61100687. The reversal of 61100656 is 65600116.

It is a self number, because there is not a number n which added to its sum of digits gives 61100656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100191 + ... + 100798.

It is an arithmetic number, because the mean of its divisors is an integer number (6230690).

Almost surely, 2^61100656 is an apocalyptic number.

It is an amenable number.

61100656 is an abundant number, since it is smaller than the sum of its proper divisors (63513144).

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

61100656 is a wasteful number, since it uses less digits than its factorization.

61100656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201016 (or 201010 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 61100656 is about 7816.6908599483. The cubic root of 61100656 is about 393.8661195777.

The spelling of 61100656 in words is "sixty-one million, one hundred thousand, six hundred fifty-six".