80669755 has 16 divisors (see below), whose sum is σ = 100806048. Its totient is φ = 61920000.

The previous prime is 80669749. The next prime is 80669767. The reversal of 80669755 is 55796608.

It is not a de Polignac number, because 80669755 - 2³ = 80669747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9280 + ... + 15730.

It is an arithmetic number, because the mean of its divisors is an integer number (6300378).

Almost surely, 2^80669755 is an apocalyptic number.

80669755 is a deficient number, since it is larger than the sum of its proper divisors (20136293).

80669755 is a wasteful number, since it uses less digits than its factorization.

80669755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6558.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 80669755 is about 8981.6343167600. The cubic root of 80669755 is about 432.0860507452.

The spelling of 80669755 in words is "eighty million, six hundred sixty-nine thousand, seven hundred fifty-five".