168670538533 has 16 divisors (see below), whose sum is σ = 196545576960. Its totient is φ = 141753113136.

The previous prime is 168670538501. The next prime is 168670538539. The reversal of 168670538533 is 335835076861.

It is a cyclic number.

It is not a de Polignac number, because 168670538533 - 2⁵ = 168670538501 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 (168670538539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374985 + ... + 691342.

It is an arithmetic number, because the mean of its divisors is an integer number (12284098560).

Almost surely, 2^168670538533 is an apocalyptic number.

It is an amenable number.

168670538533 is a deficient number, since it is larger than the sum of its proper divisors (27875038427).

168670538533 is a wasteful number, since it uses less digits than its factorization.

168670538533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066776.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 168670538533 in words is "one hundred sixty-eight billion, six hundred seventy million, five hundred thirty-eight thousand, five hundred thirty-three".