366137538649 has 9 divisors (see below), whose sum is σ = 386434300917. Its totient is φ = 346856250204.

The previous prime is 366137538593. The next prime is 366137538667. The reversal of 366137538649 is 946835731663.

The square root of 366137538649 is 605093.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 366137538649 - 2⁷ = 366137538521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316137538649) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11480844 + ... + 11512690.

Almost surely, 2^366137538649 is an apocalyptic number.

366137538649 is the 605093-rd square number.

366137538649 is the 302547-th centered octagonal number.

It is an amenable number.

366137538649 is a deficient number, since it is larger than the sum of its proper divisors (20296762268).

366137538649 is an frugal number, since it uses more digits than its factorization.

366137538649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63732 (or 31866 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 61.

The spelling of 366137538649 in words is "three hundred sixty-six billion, one hundred thirty-seven million, five hundred thirty-eight thousand, six hundred forty-nine".