2137657021366 has 4 divisors (see below), whose sum is σ = 3206485532052. Its totient is φ = 1068828510682.

The previous prime is 2137657021351. The next prime is 2137657021369. The reversal of 2137657021366 is 6631207567312.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137657021369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534414255340 + ... + 534414255343.

It is an arithmetic number, because the mean of its divisors is an integer number (801621383013).

Almost surely, 2^{2137657021366} is an apocalyptic number.

2137657021366 is a deficient number, since it is larger than the sum of its proper divisors (1068828510686).

2137657021366 is a wasteful number, since it uses less digits than its factorization.

2137657021366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068828510685.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 2137657021366 in words is "two trillion, one hundred thirty-seven billion, six hundred fifty-seven million, twenty-one thousand, three hundred sixty-six".