101660856 has 32 divisors (see below), whose sum is σ = 277257600. Its totient is φ = 30806240.

The previous prime is 101660813. The next prime is 101660861. The reversal of 101660856 is 658066101.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192276 + ... + 192803.

It is an arithmetic number, because the mean of its divisors is an integer number (8664300).

Almost surely, 2^101660856 is an apocalyptic number.

It is an amenable number.

101660856 is an abundant number, since it is smaller than the sum of its proper divisors (175596744).

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

101660856 is a wasteful number, since it uses less digits than its factorization.

101660856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385099 (or 385095 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 101660856 is about 10082.7008286471. The cubic root of 101660856 is about 466.7144572372.

The spelling of 101660856 in words is "one hundred one million, six hundred sixty thousand, eight hundred fifty-six".