80355616 has 36 divisors (see below), whose sum is σ = 173897766. Its totient is φ = 36523520.

The previous prime is 80355593. The next prime is 80355619. The reversal of 80355616 is 61655308.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 6739216 = 8580^2 + 2596^2 .

It is not an unprimeable number, because it can be changed into a prime (80355619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6505 + ... + 14248.

Almost surely, 2^80355616 is an apocalyptic number.

It is an amenable number.

80355616 is an abundant number, since it is smaller than the sum of its proper divisors (93542150).

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

80355616 is a wasteful number, since it uses less digits than its factorization.

80355616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20785 (or 20766 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 80355616 is about 8964.1294055809. The cubic root of 80355616 is about 431.5244538479.

The spelling of 80355616 in words is "eighty million, three hundred fifty-five thousand, six hundred sixteen".