168936905937 has 8 divisors (see below), whose sum is σ = 225264301504. Its totient is φ = 112617057168.

The previous prime is 168936905927. The next prime is 168936905953. The reversal of 168936905937 is 739509639861.

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

It is not a de Polignac number, because 168936905937 - 2¹² = 168936901841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168936905927) 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, 1834258 + ... + 1924155.

It is an arithmetic number, because the mean of its divisors is an integer number (28158037688).

Almost surely, 2^168936905937 is an apocalyptic number.

It is an amenable number.

168936905937 is a deficient number, since it is larger than the sum of its proper divisors (56327395567).

168936905937 is a wasteful number, since it uses less digits than its factorization.

168936905937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773399.

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 168936905937 in words is "one hundred sixty-eight billion, nine hundred thirty-six million, nine hundred five thousand, nine hundred thirty-seven".