137650646169 has 81 divisors (see below), whose sum is σ = 220142370357. Its totient is φ = 82863527472.

The previous prime is 137650646167. The next prime is 137650646173. The reversal of 137650646169 is 961646056731.

It is a happy number.

The square root of 137650646169 is 371013.

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

137650646169 is a `hidden beast` number, since 1 + 3 + 76 + 50 + 6 + 461 + 69 = 666.

It is not a de Polignac number, because 137650646169 - 2¹ = 137650646167 is a prime.

It is a super-2 number, since 2×137650646169² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (137650646167) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 486397902 + ... + 486398184.

Almost surely, 2^137650646169 is an apocalyptic number.

137650646169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

137650646169 is the 371013-rd square number.

137650646169 is the 185507-th centered octagonal number.

It is an amenable number.

137650646169 is a deficient number, since it is larger than the sum of its proper divisors (82491724188).

137650646169 is an equidigital number, since it uses as much as digits as its factorization.

137650646169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 137650646169 in words is "one hundred thirty-seven billion, six hundred fifty million, six hundred forty-six thousand, one hundred sixty-nine".