80545916 has 12 divisors (see below), whose sum is σ = 153769560. Its totient is φ = 36611760.

The previous prime is 80545903. The next prime is 80545919. The reversal of 80545916 is 61954508.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80545916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80545919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915251 + ... + 915338.

It is an arithmetic number, because the mean of its divisors is an integer number (12814130).

Almost surely, 2^80545916 is an apocalyptic number.

It is an amenable number.

80545916 is a deficient number, since it is larger than the sum of its proper divisors (73223644).

80545916 is a wasteful number, since it uses less digits than its factorization.

80545916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830604 (or 1830602 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 80545916 is about 8974.7376563329. The cubic root of 80545916 is about 431.8648339705.

The spelling of 80545916 in words is "eighty million, five hundred forty-five thousand, nine hundred sixteen".