2665685160 has 64 divisors (see below), whose sum is σ = 8885620800. Its totient is φ = 710849088.

The previous prime is 2665685137. The next prime is 2665685167. The reversal of 2665685160 is 615865662.

It is a happy number.

2665685160 is a `hidden beast` number, since 26 + 6 + 568 + 5 + 1 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2665685167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233034 + ... + 1235193.

It is an arithmetic number, because the mean of its divisors is an integer number (138837825).

Almost surely, 2^2665685160 is an apocalyptic number.

2665685160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2665685160 is an abundant number, since it is smaller than the sum of its proper divisors (6219935640).

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

2665685160 is a wasteful number, since it uses less digits than its factorization.

2665685160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468247 (or 2468237 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 2665685160 is about 51630.2736773688. The cubic root of 2665685160 is about 1386.5523931452.

The spelling of 2665685160 in words is "two billion, six hundred sixty-five million, six hundred eighty-five thousand, one hundred sixty".