80651776 has 20 divisors (see below), whose sum is σ = 161147052. Its totient is φ = 40325632.

The previous prime is 80651773. The next prime is 80651819. The reversal of 80651776 is 67715608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80651771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78250 + ... + 79273.

Almost surely, 2^80651776 is an apocalyptic number.

It is an amenable number.

80651776 is a deficient number, since it is larger than the sum of its proper divisors (80495276).

80651776 is an equidigital number, since it uses as much as digits as its factorization.

80651776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157541 (or 157525 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 80651776 is about 8980.6333852351. The cubic root of 80651776 is about 432.0539484524.

The spelling of 80651776 in words is "eighty million, six hundred fifty-one thousand, seven hundred seventy-six".