80766355 has 4 divisors (see below), whose sum is σ = 96919632. Its totient is φ = 64613080.

The previous prime is 80766319. The next prime is 80766391. The reversal of 80766355 is 55366708.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (80766319) and next prime (80766391).

It is not a de Polignac number, because 80766355 - 2⁹ = 80765843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8076631 + ... + 8076640.

It is an arithmetic number, because the mean of its divisors is an integer number (24229908).

Almost surely, 2^80766355 is an apocalyptic number.

80766355 is a deficient number, since it is larger than the sum of its proper divisors (16153277).

80766355 is a wasteful number, since it uses less digits than its factorization.

80766355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16153276.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 80766355 is about 8987.0103482749. The cubic root of 80766355 is about 432.2584526692.

The spelling of 80766355 in words is "eighty million, seven hundred sixty-six thousand, three hundred fifty-five".