80660321146 has 24 divisors (see below), whose sum is σ = 126891098964. Its totient is φ = 38431391040.

The previous prime is 80660321143. The next prime is 80660321177. The reversal of 80660321146 is 64112306608.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79933425625 + 726895521 = 282725^2 + 26961^2 .

It is not an unprimeable number, because it can be changed into a prime (80660321143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114381 + ... + 417616.

Almost surely, 2^80660321146 is an apocalyptic number.

80660321146 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

80660321146 is a deficient number, since it is larger than the sum of its proper divisors (46230777818).

80660321146 is a wasteful number, since it uses less digits than its factorization.

80660321146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532126 (or 532083 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 80660321146 in words is "eighty billion, six hundred sixty million, three hundred twenty-one thousand, one hundred forty-six".