2152311580 has 24 divisors (see below), whose sum is σ = 4521584592. Its totient is φ = 860595072.

The previous prime is 2152311547. The next prime is 2152311593. The reversal of 2152311580 is 851132512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36864 + ... + 75256.

It is an arithmetic number, because the mean of its divisors is an integer number (188399358).

Almost surely, 2^2152311580 is an apocalyptic number.

2152311580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152311580 is an abundant number, since it is smaller than the sum of its proper divisors (2369273012).

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

2152311580 is a wasteful number, since it uses less digits than its factorization.

2152311580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41205 (or 41203 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 2152311580 is about 46393.0121893373. The cubic root of 2152311580 is about 1291.1252685671.

It can be divided in two parts, 215231 and 1580, that added together give a triangular number (216811 = T₆₅₈).

The spelling of 2152311580 in words is "two billion, one hundred fifty-two million, three hundred eleven thousand, five hundred eighty".