80471455920 has 120 divisors (see below), whose sum is σ = 270956514816. Its totient is φ = 21402952704.

The previous prime is 80471455861. The next prime is 80471455931. The reversal of 80471455920 is 2955417408.

80471455920 is a `hidden beast` number, since 8 + 0 + 4 + 71 + 4 + 559 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129852 + ... + 421668.

Almost surely, 2^80471455920 is an apocalyptic number.

80471455920 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 80471455920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135478257408).

80471455920 is an abundant number, since it is smaller than the sum of its proper divisors (190485058896).

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

80471455920 is a wasteful number, since it uses less digits than its factorization.

80471455920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292219 (or 292210 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 80471455920 in words is "eighty billion, four hundred seventy-one million, four hundred fifty-five thousand, nine hundred twenty".