106156561656 has 32 divisors (see below), whose sum is σ = 271038032640. Its totient is φ = 34632636768.

The previous prime is 106156561633. The next prime is 106156561691. The reversal of 106156561656 is 656165651601.

It is a super-2 number, since 2×106156561656² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 47054086 + ... + 47056341.

It is an arithmetic number, because the mean of its divisors is an integer number (8469938520).

Almost surely, 2^106156561656 is an apocalyptic number.

It is an amenable number.

106156561656 is an abundant number, since it is smaller than the sum of its proper divisors (164881470984).

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

106156561656 is a wasteful number, since it uses less digits than its factorization.

106156561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94110483 (or 94110479 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 106156561656 in words is "one hundred six billion, one hundred fifty-six million, five hundred sixty-one thousand, six hundred fifty-six".