80661246496 has 48 divisors (see below), whose sum is σ = 159683529600. Its totient is φ = 40107260160.

The previous prime is 80661246437. The next prime is 80661246509. The reversal of 80661246496 is 69464216608.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4821955 + ... + 4838653.

It is an arithmetic number, because the mean of its divisors is an integer number (3326740200).

Almost surely, 2^80661246496 is an apocalyptic number.

It is an amenable number.

80661246496 is a deficient number, since it is larger than the sum of its proper divisors (79022283104).

80661246496 is a wasteful number, since it uses less digits than its factorization.

80661246496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17537 (or 17529 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 80661246496 in words is "eighty billion, six hundred sixty-one million, two hundred forty-six thousand, four hundred ninety-six".