80834155380 has 72 divisors (see below), whose sum is σ = 267487575264. Its totient is φ = 19596158400.

The previous prime is 80834155373. The next prime is 80834155417. The reversal of 80834155380 is 8355143808.

80834155380 is a `hidden beast` number, since 80 + 8 + 34 + 1 + 5 + 538 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20410686 + ... + 20414645.

It is an arithmetic number, because the mean of its divisors is an integer number (3715105212).

Almost surely, 2^80834155380 is an apocalyptic number.

It is an amenable number.

80834155380 is an abundant number, since it is smaller than the sum of its proper divisors (186653419884).

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

80834155380 is a wasteful number, since it uses less digits than its factorization.

80834155380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40825357 (or 40825352 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 80834155380 in words is "eighty billion, eight hundred thirty-four million, one hundred fifty-five thousand, three hundred eighty".