2164507580 has 12 divisors (see below), whose sum is σ = 4545465960. Its totient is φ = 865803024.

The previous prime is 2164507573. The next prime is 2164507603. The reversal of 2164507580 is 857054612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54112670 + ... + 54112709.

It is an arithmetic number, because the mean of its divisors is an integer number (378788830).

Almost surely, 2^2164507580 is an apocalyptic number.

2164507580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2164507580 is an abundant number, since it is smaller than the sum of its proper divisors (2380958380).

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

2164507580 is a wasteful number, since it uses less digits than its factorization.

2164507580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108225388 (or 108225386 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2164507580 is about 46524.2687207440. The cubic root of 2164507580 is about 1293.5593824665.

The spelling of 2164507580 in words is "two billion, one hundred sixty-four million, five hundred seven thousand, five hundred eighty".