80816300640 has 192 divisors, whose sum is σ = 291981957120. Its totient is φ = 20855784960.

The previous prime is 80816300549. The next prime is 80816300699. The reversal of 80816300640 is 4600361808.

It is a happy number.

80816300640 is a `hidden beast` number, since 8 + 0 + 8 + 1 + 6 + 3 + 0 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 80816300595 and 80816300604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167814 + ... + 435653.

It is an arithmetic number, because the mean of its divisors is an integer number (1520739360).

Almost surely, 2^80816300640 is an apocalyptic number.

80816300640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80816300640 is an abundant number, since it is smaller than the sum of its proper divisors (211165656480).

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

80816300640 is a wasteful number, since it uses less digits than its factorization.

80816300640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603522 (or 603508 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 80816300640 in words is "eighty billion, eight hundred sixteen million, three hundred thousand, six hundred forty".