80166590 has 32 divisors (see below), whose sum is σ = 165279744. Its totient is φ = 27424800.

The previous prime is 80166587. The next prime is 80166601. The reversal of 80166590 is 9566108.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 80166590.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40115 + ... + 42065.

It is an arithmetic number, because the mean of its divisors is an integer number (5164992).

Almost surely, 2^80166590 is an apocalyptic number.

80166590 is an abundant number, since it is smaller than the sum of its proper divisors (85113154).

80166590 is a wasteful number, since it uses less digits than its factorization.

80166590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 80166590 is about 8953.5797310350. The cubic root of 80166590 is about 431.1858200366.

The spelling of 80166590 in words is "eighty million, one hundred sixty-six thousand, five hundred ninety".