80667405937920 has 576 divisors, whose sum is σ = 285228933341184. Its totient is φ = 19326061117440.

The previous prime is 80667405937891. The next prime is 80667405937961. The reversal of 80667405937920 is 2973950476608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 737152329 + ... + 737261751.

It is an arithmetic number, because the mean of its divisors is an integer number (495189120384).

Almost surely, 2^{80667405937920} is an apocalyptic number.

80667405937920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80667405937920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142614466670592).

80667405937920 is an abundant number, since it is smaller than the sum of its proper divisors (204561527403264).

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

80667405937920 is a wasteful number, since it uses less digits than its factorization.

80667405937920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109978 (or 109964 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 66.

The spelling of 80667405937920 in words is "eighty trillion, six hundred sixty-seven billion, four hundred five million, nine hundred thirty-seven thousand, nine hundred twenty".