80921160 has 128 divisors (see below), whose sum is σ = 278553600. Its totient is φ = 20874240.

The previous prime is 80921149. The next prime is 80921237. The reversal of 80921160 is 6112908.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 32272 + ... + 34688.

It is an arithmetic number, because the mean of its divisors is an integer number (2176200).

Almost surely, 2^80921160 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 80921160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139276800).

80921160 is an abundant number, since it is smaller than the sum of its proper divisors (197632440).

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

80921160 is a wasteful number, since it uses less digits than its factorization.

80921160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 80921160 is about 8995.6189336810. The cubic root of 80921160 is about 432.5344465642.

The spelling of 80921160 in words is "eighty million, nine hundred twenty-one thousand, one hundred sixty".