660136420513637 has 8 divisors (see below), whose sum is σ = 698980326901632. Its totient is φ = 621293886596800.

The previous prime is 660136420513631. The next prime is 660136420513657. The reversal of 660136420513637 is 736315024631066.

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 660136420513637 - 2²⁴ = 660136403736421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660136420513631) 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, 342127439 + ... + 344051532.

It is an arithmetic number, because the mean of its divisors is an integer number (87372540862704).

Almost surely, 2^{660136420513637} is an apocalyptic number.

It is an amenable number.

660136420513637 is a deficient number, since it is larger than the sum of its proper divisors (38843906387995).

660136420513637 is a wasteful number, since it uses less digits than its factorization.

660136420513637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686235579.

The product of its (nonzero) digits is 9797760, while the sum is 53.

The spelling of 660136420513637 in words is "six hundred sixty trillion, one hundred thirty-six billion, four hundred twenty million, five hundred thirteen thousand, six hundred thirty-seven".