45081656 has 32 divisors (see below), whose sum is σ = 88560000. Its totient is φ = 21473760.

The previous prime is 45081649. The next prime is 45081683. The reversal of 45081656 is 65618054.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90095 + ... + 90593.

It is an arithmetic number, because the mean of its divisors is an integer number (2767500).

Almost surely, 2^45081656 is an apocalyptic number.

45081656 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

45081656 is a deficient number, since it is larger than the sum of its proper divisors (43478344).

45081656 is a wasteful number, since it uses less digits than its factorization.

45081656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 45081656 is about 6714.2874528873. The cubic root of 45081656 is about 355.9043424344.

The spelling of 45081656 in words is "forty-five million, eighty-one thousand, six hundred fifty-six".