101665755 has 12 divisors (see below), whose sum is σ = 176220720. Its totient is φ = 54221712.

The previous prime is 101665721. The next prime is 101665757. The reversal of 101665755 is 557566101.

It is not a de Polignac number, because 101665755 - 2¹⁴ = 101649371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101665757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1129575 + ... + 1129664.

It is an arithmetic number, because the mean of its divisors is an integer number (14685060).

Almost surely, 2^101665755 is an apocalyptic number.

101665755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101665755 is a deficient number, since it is larger than the sum of its proper divisors (74554965).

101665755 is a wasteful number, since it uses less digits than its factorization.

101665755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259250 (or 2259247 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 101665755 is about 10082.9437665793. The cubic root of 101665755 is about 466.7219540506.

It can be divided in two parts, 101 and 665755, that added together give a square (665856 = 816²).

The spelling of 101665755 in words is "one hundred one million, six hundred sixty-five thousand, seven hundred fifty-five".