137243941664 has 12 divisors (see below), whose sum is σ = 270199010214. Its totient is φ = 68621970816.

The previous prime is 137243941621. The next prime is 137243941759. The reversal of 137243941664 is 466149342731.

It can be written as a sum of positive squares in only one way, i.e., 90907074064 + 46336867600 = 301508^2 + 215260^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144436557 + ... + 2144436620.

Almost surely, 2^137243941664 is an apocalyptic number.

It is an amenable number.

137243941664 is a deficient number, since it is larger than the sum of its proper divisors (132955068550).

137243941664 is an equidigital number, since it uses as much as digits as its factorization.

137243941664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4288873187 (or 4288873179 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 50.

The spelling of 137243941664 in words is "one hundred thirty-seven billion, two hundred forty-three million, nine hundred forty-one thousand, six hundred sixty-four".