2137646258320 has 40 divisors (see below), whose sum is σ = 5006305149624. Its totient is φ = 848817196032.

The previous prime is 2137646258311. The next prime is 2137646258323. The reversal of 2137646258320 is 238526467312.

It can be written as a sum of positive squares in 4 ways, for example, as 45712150416 + 2091934107904 = 213804^2 + 1446352^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2137646258323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97509399 + ... + 97531318.

Almost surely, 2^{2137646258320} is an apocalyptic number.

2137646258320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2137646258320 is an abundant number, since it is smaller than the sum of its proper divisors (2868658891304).

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

2137646258320 is a wasteful number, since it uses less digits than its factorization.

2137646258320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195040867 (or 195040861 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 2137646258320 in words is "two trillion, one hundred thirty-seven billion, six hundred forty-six million, two hundred fifty-eight thousand, three hundred twenty".