1164780680 has 64 divisors (see below), whose sum is σ = 3015360000. Its totient is φ = 396658944.

The previous prime is 1164780677. The next prime is 1164780691. The reversal of 1164780680 is 860874611.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27761 + ... + 55679.

It is an arithmetic number, because the mean of its divisors is an integer number (47115000).

Almost surely, 2^1164780680 is an apocalyptic number.

1164780680 is a gapful number since it is divisible by the number (10) 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 1164780680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1507680000).

1164780680 is an abundant number, since it is smaller than the sum of its proper divisors (1850579320).

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

1164780680 is a wasteful number, since it uses less digits than its factorization.

1164780680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28086 (or 28082 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1164780680 is about 34128.8833687831. The cubic root of 1164780680 is about 1052.1590284245.

The spelling of 1164780680 in words is "one billion, one hundred sixty-four million, seven hundred eighty thousand, six hundred eighty".