80900064 has 72 divisors (see below), whose sum is σ = 262931760. Its totient is φ = 23113728.

The previous prime is 80900047. The next prime is 80900087. The reversal of 80900064 is 46000908.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18049 + ... + 22080.

It is an arithmetic number, because the mean of its divisors is an integer number (3651830).

Almost surely, 2^80900064 is an apocalyptic number.

80900064 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80900064 is an abundant number, since it is smaller than the sum of its proper divisors (182031696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80900064 is a wasteful number, since it uses less digits than its factorization.

80900064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40152 (or 40141 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 80900064 is about 8994.4462864592. The cubic root of 80900064 is about 432.4968563149.

The spelling of 80900064 in words is "eighty million, nine hundred thousand, sixty-four".