10665660 has 24 divisors (see below), whose sum is σ = 29864016. Its totient is φ = 2844160.

The previous prime is 10665637. The next prime is 10665661. The reversal of 10665660 is 6656601.

It is a super-2 number, since 2×10665660² = 227512606471200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10665661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88821 + ... + 88940.

It is an arithmetic number, because the mean of its divisors is an integer number (1244334).

Almost surely, 2^10665660 is an apocalyptic number.

10665660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10665660 is an abundant number, since it is smaller than the sum of its proper divisors (19198356).

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

10665660 is a wasteful number, since it uses less digits than its factorization.

10665660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177773 (or 177771 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 10665660 is about 3265.8322063450. The cubic root of 10665660 is about 220.1215581666.

It can be divided in two parts, 10665 and 660, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 10665660 in words is "ten million, six hundred sixty-five thousand, six hundred sixty".