2660857237020 has 96 divisors (see below), whose sum is σ = 7898593683456. Its totient is φ = 668114092800.

The previous prime is 2660857237009. The next prime is 2660857237111. The reversal of 2660857237020 is 207327580662.

It is a happy number.

It is a super-2 number, since 2×2660857237020² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19263186 + ... + 19400825.

It is an arithmetic number, because the mean of its divisors is an integer number (82277017536).

Almost surely, 2^{2660857237020} is an apocalyptic number.

2660857237020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660857237020 is an abundant number, since it is smaller than the sum of its proper divisors (5237736446436).

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

2660857237020 is a wasteful number, since it uses less digits than its factorization.

2660857237020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38664091 (or 38664089 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 2660857237020 in words is "two trillion, six hundred sixty billion, eight hundred fifty-seven million, two hundred thirty-seven thousand, twenty".