168459570137 has 4 divisors (see below), whose sum is σ = 168560870400. Its totient is φ = 168358269876.

The previous prime is 168459570089. The next prime is 168459570157. The reversal of 168459570137 is 731075954861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168459570137 - 2²² = 168455375833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168459570157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50647637 + ... + 50650962.

It is an arithmetic number, because the mean of its divisors is an integer number (42140217600).

Almost surely, 2^168459570137 is an apocalyptic number.

It is an amenable number.

168459570137 is a deficient number, since it is larger than the sum of its proper divisors (101300263).

168459570137 is a wasteful number, since it uses less digits than its factorization.

168459570137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101300262.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 168459570137 in words is "one hundred sixty-eight billion, four hundred fifty-nine million, five hundred seventy thousand, one hundred thirty-seven".