106556171605656 has 64 divisors (see below), whose sum is σ = 271801442717280. Its totient is φ = 34804506316800.

The previous prime is 106556171605601. The next prime is 106556171605687. The reversal of 106556171605656 is 656506171655601.

It is a super-2 number, since 2×106556171605656² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106556171605656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226356711 + ... + 226826966.

Almost surely, 2^{106556171605656} is an apocalyptic number.

It is an amenable number.

106556171605656 is an abundant number, since it is smaller than the sum of its proper divisors (165245271111624).

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

106556171605656 is a wasteful number, since it uses less digits than its factorization.

106556171605656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453183884 (or 453183880 counting only the distinct ones).

The product of its (nonzero) digits is 34020000, while the sum is 60.

The spelling of 106556171605656 in words is "one hundred six trillion, five hundred fifty-six billion, one hundred seventy-one million, six hundred five thousand, six hundred fifty-six".