167980995 has 192 divisors, whose sum is σ = 402554880. Its totient is φ = 62705664.

The previous prime is 167980991. The next prime is 167981017. The reversal of 167980995 is 599089761.

It is not a de Polignac number, because 167980995 - 2² = 167980991 is a prime.

It is a super-2 number, since 2×167980995² = 56435229362380050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (167980991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1322622 + ... + 1322748.

It is an arithmetic number, because the mean of its divisors is an integer number (2096640).

Almost surely, 2^167980995 is an apocalyptic number.

167980995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

167980995 is an abundant number, since it is smaller than the sum of its proper divisors (234573885).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

167980995 is a wasteful number, since it uses less digits than its factorization.

167980995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 167980995 is about 12960.7482422891. The cubic root of 167980995 is about 551.7640276051.

The spelling of 167980995 in words is "one hundred sixty-seven million, nine hundred eighty thousand, nine hundred ninety-five".