66136659648137 has 8 divisors (see below), whose sum is σ = 71304392757696. Its totient is φ = 60980397646032.

The previous prime is 66136659648133. The next prime is 66136659648211. The reversal of 66136659648137 is 73184695663166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66136659648137 - 2² = 66136659648133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66136659648133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2867764883 + ... + 2867787944.

It is an arithmetic number, because the mean of its divisors is an integer number (8913049094712).

Almost surely, 2^{66136659648137} is an apocalyptic number.

It is an amenable number.

66136659648137 is a deficient number, since it is larger than the sum of its proper divisors (5167733109559).

66136659648137 is a wasteful number, since it uses less digits than its factorization.

66136659648137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735553727.

The product of its digits is 705438720, while the sum is 71.

The spelling of 66136659648137 in words is "sixty-six trillion, one hundred thirty-six billion, six hundred fifty-nine million, six hundred forty-eight thousand, one hundred thirty-seven".