80669695 has 4 divisors (see below), whose sum is σ = 96803640. Its totient is φ = 64535752.

The previous prime is 80669681. The next prime is 80669711. The reversal of 80669695 is 59696608.

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

It is a cyclic number.

It is not a de Polignac number, because 80669695 - 2⁵ = 80669663 is a prime.

It is a congruent 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, 8066965 + ... + 8066974.

It is an arithmetic number, because the mean of its divisors is an integer number (24200910).

Almost surely, 2^80669695 is an apocalyptic number.

80669695 is a deficient number, since it is larger than the sum of its proper divisors (16133945).

80669695 is a wasteful number, since it uses less digits than its factorization.

80669695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16133944.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 80669695 is about 8981.6309766100. The cubic root of 80669695 is about 432.0859436205.

The spelling of 80669695 in words is "eighty million, six hundred sixty-nine thousand, six hundred ninety-five".