80651016 has 24 divisors (see below), whose sum is σ = 218430030. Its totient is φ = 26883648.

The previous prime is 80651003. The next prime is 80651027. The reversal of 80651016 is 61015608.

80651016 is a `hidden beast` number, since 8 + 0 + 651 + 0 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71470116 + 9180900 = 8454^2 + 3030^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560005 + ... + 560148.

Almost surely, 2^80651016 is an apocalyptic number.

It is an amenable number.

80651016 is an abundant number, since it is smaller than the sum of its proper divisors (137779014).

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

80651016 is a wasteful number, since it uses less digits than its factorization.

80651016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120165 (or 1120158 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 80651016 is about 8980.5910718616. The cubic root of 80651016 is about 432.0525913339.

The spelling of 80651016 in words is "eighty million, six hundred fifty-one thousand, sixteen".