167422521579 has 4 divisors (see below), whose sum is σ = 223230028776. Its totient is φ = 111615014384.

The previous prime is 167422521551. The next prime is 167422521583. The reversal of 167422521579 is 975125224761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 167422521579 - 2⁸ = 167422521323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (167422523579) 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, 27903753594 + ... + 27903753599.

It is an arithmetic number, because the mean of its divisors is an integer number (55807507194).

Almost surely, 2^167422521579 is an apocalyptic number.

167422521579 is a deficient number, since it is larger than the sum of its proper divisors (55807507197).

167422521579 is an equidigital number, since it uses as much as digits as its factorization.

167422521579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55807507196.

The product of its digits is 2116800, while the sum is 51.

The spelling of 167422521579 in words is "one hundred sixty-seven billion, four hundred twenty-two million, five hundred twenty-one thousand, five hundred seventy-nine".