80158690 has 32 divisors (see below), whose sum is σ = 148717296. Its totient is φ = 31088640.

The previous prime is 80158633. The next prime is 80158691. The reversal of 80158690 is 9685108.

It can be written as a sum of positive squares in 8 ways, for example, as 431649 + 79727041 = 657^2 + 8929^2 .

It is a super-2 number, since 2×80158690² = 12850831165032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80158691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78624 + ... + 79636.

Almost surely, 2^80158690 is an apocalyptic number.

80158690 is a deficient number, since it is larger than the sum of its proper divisors (68558606).

80158690 is a wasteful number, since it uses less digits than its factorization.

80158690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 80158690 is about 8953.1385558362. The cubic root of 80158690 is about 431.1716558656.

The spelling of 80158690 in words is "eighty million, one hundred fifty-eight thousand, six hundred ninety".