167662401 has 4 divisors (see below), whose sum is σ = 223549872. Its totient is φ = 111774932.

The previous prime is 167662393. The next prime is 167662421. The reversal of 167662401 is 104266761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 104266761 = 3 ⋅34755587.

It is a cyclic number.

It is not a de Polignac number, because 167662401 - 2³ = 167662393 is a prime.

It is a super-2 number, since 2×167662401² = 56221361418169602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (167662421) 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, 27943731 + ... + 27943736.

It is an arithmetic number, because the mean of its divisors is an integer number (55887468).

Almost surely, 2^167662401 is an apocalyptic number.

It is an amenable number.

167662401 is a deficient number, since it is larger than the sum of its proper divisors (55887471).

167662401 is an equidigital number, since it uses as much as digits as its factorization.

167662401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55887470.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 167662401 is about 12948.4516835025. The cubic root of 167662401 is about 551.4149802621.

The spelling of 167662401 in words is "one hundred sixty-seven million, six hundred sixty-two thousand, four hundred one".