656254290166 has 16 divisors (see below), whose sum is σ = 989165806128. Its totient is φ = 326532729600.

The previous prime is 656254290151. The next prime is 656254290173. The reversal of 656254290166 is 661092452656.

It is a super-2 number, since 2×656254290166² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3587646 + ... + 3766126.

It is an arithmetic number, because the mean of its divisors is an integer number (61822862883).

Almost surely, 2^656254290166 is an apocalyptic number.

656254290166 is a deficient number, since it is larger than the sum of its proper divisors (332911515962).

656254290166 is a wasteful number, since it uses less digits than its factorization.

656254290166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187407.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 656254290166 in words is "six hundred fifty-six billion, two hundred fifty-four million, two hundred ninety thousand, one hundred sixty-six".