168670842061 has 4 divisors (see below), whose sum is σ = 168686936352. Its totient is φ = 168654747772.

The previous prime is 168670842049. The next prime is 168670842101. The reversal of 168670842061 is 160248076861.

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 168670842061 - 2¹⁹ = 168670317773 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168670841996 and 168670842014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168670848061) 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, 8031415 + ... + 8052388.

It is an arithmetic number, because the mean of its divisors is an integer number (42171734088).

Almost surely, 2^168670842061 is an apocalyptic number.

It is an amenable number.

168670842061 is a deficient number, since it is larger than the sum of its proper divisors (16094291).

168670842061 is a wasteful number, since it uses less digits than its factorization.

168670842061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16094290.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 168670842061 in words is "one hundred sixty-eight billion, six hundred seventy million, eight hundred forty-two thousand, sixty-one".