2158362660 has 48 divisors (see below), whose sum is σ = 6046286400. Its totient is φ = 575289984.

The previous prime is 2158362629. The next prime is 2158362667. The reversal of 2158362660 is 662638512.

It is not an unprimeable number, because it can be changed into a prime (2158362667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140226 + ... + 154854.

It is an arithmetic number, because the mean of its divisors is an integer number (125964300).

Almost surely, 2^2158362660 is an apocalyptic number.

2158362660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2158362660 is an abundant number, since it is smaller than the sum of its proper divisors (3887923740).

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

2158362660 is a wasteful number, since it uses less digits than its factorization.

2158362660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17100 (or 17098 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2158362660 is about 46458.1818413076. The cubic root of 2158362660 is about 1292.3341071862.

The spelling of 2158362660 in words is "two billion, one hundred fifty-eight million, three hundred sixty-two thousand, six hundred sixty".