80855205440 has 56 divisors (see below), whose sum is σ = 196633014912. Its totient is φ = 31653946880.

The previous prime is 80855205407. The next prime is 80855205499. The reversal of 80855205440 is 4450255808.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672966 + ... + 2703045.

Almost surely, 2^80855205440 is an apocalyptic number.

80855205440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80855205440 is an abundant number, since it is smaller than the sum of its proper divisors (115777809472).

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

80855205440 is a wasteful number, since it uses less digits than its factorization.

80855205440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5376075 (or 5376065 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 41.

The spelling of 80855205440 in words is "eighty billion, eight hundred fifty-five million, two hundred five thousand, four hundred forty".