80839023658656 has 192 divisors, whose sum is σ = 223557449472000. Its totient is φ = 25527959806976.

The previous prime is 80839023658609. The next prime is 80839023658697. The reversal of 80839023658656 is 65685632093808.

It is a Harshad number since it is a multiple of its sum of digits (69).

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, 113806165 + ... + 114514283.

It is an arithmetic number, because the mean of its divisors is an integer number (1164361716000).

Almost surely, 2^{80839023658656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80839023658656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111778724736000).

80839023658656 is an abundant number, since it is smaller than the sum of its proper divisors (142718425813344).

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

80839023658656 is a wasteful number, since it uses less digits than its factorization.

80839023658656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708651 (or 708643 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 69.

The spelling of 80839023658656 in words is "eighty trillion, eight hundred thirty-nine billion, twenty-three million, six hundred fifty-eight thousand, six hundred fifty-six".