167395442641 has 4 divisors (see below), whose sum is σ = 191309077312. Its totient is φ = 143481807972.

The previous prime is 167395442611. The next prime is 167395442651. The reversal of 167395442641 is 146244593761.

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 167395442641 - 2⁵ = 167395442609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167395442611) 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, 11956817325 + ... + 11956817338.

It is an arithmetic number, because the mean of its divisors is an integer number (47827269328).

Almost surely, 2^167395442641 is an apocalyptic number.

It is an amenable number.

167395442641 is a deficient number, since it is larger than the sum of its proper divisors (23913634671).

167395442641 is an equidigital number, since it uses as much as digits as its factorization.

167395442641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23913634670.

The product of its digits is 4354560, while the sum is 52.

The spelling of 167395442641 in words is "one hundred sixty-seven billion, three hundred ninety-five million, four hundred forty-two thousand, six hundred forty-one".