921160080 has 160 divisors (see below), whose sum is σ = 3184617600. Its totient is φ = 244735488.

The previous prime is 921160049. The next prime is 921160099. The reversal of 921160080 is 80061129.

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, 748906 + ... + 750134.

It is an arithmetic number, because the mean of its divisors is an integer number (19903860).

Almost surely, 2^921160080 is an apocalyptic number.

921160080 is a gapful number since it is divisible by the number (90) 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 921160080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1592308800).

921160080 is an abundant number, since it is smaller than the sum of its proper divisors (2263457520).

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

921160080 is a wasteful number, since it uses less digits than its factorization.

921160080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598 (or 1586 counting only the distinct ones).

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

The square root of 921160080 is about 30350.6191040644. The cubic root of 921160080 is about 972.9974519217.

The spelling of 921160080 in words is "nine hundred twenty-one million, one hundred sixty thousand, eighty".