80656045 has 16 divisors (see below), whose sum is σ = 102674880. Its totient is φ = 60652800.

The previous prime is 80656039. The next prime is 80656063. The reversal of 80656045 is 54065608.

It is not a de Polignac number, because 80656045 - 2⁵ = 80656013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80656045.

It is a congruent 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, 9205 + ... + 15685.

It is an arithmetic number, because the mean of its divisors is an integer number (6417180).

Almost surely, 2^80656045 is an apocalyptic number.

It is an amenable number.

80656045 is a deficient number, since it is larger than the sum of its proper divisors (22018835).

80656045 is a wasteful number, since it uses less digits than its factorization.

80656045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 80656045 is about 8980.8710602035. The cubic root of 80656045 is about 432.0615713709.

The spelling of 80656045 in words is "eighty million, six hundred fifty-six thousand, forty-five".