167981662 has 4 divisors (see below), whose sum is σ = 251972496. Its totient is φ = 83990830.

The previous prime is 167981657. The next prime is 167981677. The reversal of 167981662 is 266189761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266189761 = 863 ⋅308447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41995414 + ... + 41995417.

It is an arithmetic number, because the mean of its divisors is an integer number (62993124).

Almost surely, 2^167981662 is an apocalyptic number.

167981662 is a deficient number, since it is larger than the sum of its proper divisors (83990834).

167981662 is an equidigital number, since it uses as much as digits as its factorization.

167981662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83990833.

The product of its digits is 217728, while the sum is 46.

The square root of 167981662 is about 12960.7739738026. The cubic root of 167981662 is about 551.7647578983.

The spelling of 167981662 in words is "one hundred sixty-seven million, nine hundred eighty-one thousand, six hundred sixty-two".