80641562 has 4 divisors (see below), whose sum is σ = 120962346. Its totient is φ = 40320780.

The previous prime is 80641559. The next prime is 80641577. The reversal of 80641562 is 26514608.

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

It can be written as a sum of positive squares in only one way, i.e., 68244121 + 12397441 = 8261^2 + 3521^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160389 + ... + 20160392.

Almost surely, 2^80641562 is an apocalyptic number.

80641562 is a deficient number, since it is larger than the sum of its proper divisors (40320784).

80641562 is a wasteful number, since it uses less digits than its factorization.

80641562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40320783.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 80641562 is about 8980.0646990988. The cubic root of 80641562 is about 432.0357087824.

The spelling of 80641562 in words is "eighty million, six hundred forty-one thousand, five hundred sixty-two".