101660772 has 48 divisors (see below), whose sum is σ = 243955712. Its totient is φ = 32931360.

The previous prime is 101660761. The next prime is 101660803. The reversal of 101660772 is 277066101.

It is a happy 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, 139473 + ... + 140199.

Almost surely, 2^101660772 is an apocalyptic number.

101660772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101660772 is an abundant number, since it is smaller than the sum of its proper divisors (142294940).

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

101660772 is a wasteful number, since it uses less digits than its factorization.

101660772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 101660772 is about 10082.6966630956. The cubic root of 101660772 is about 466.7143286921.

The spelling of 101660772 in words is "one hundred one million, six hundred sixty thousand, seven hundred seventy-two".