166897796 has 24 divisors (see below), whose sum is σ = 316438080. Its totient is φ = 76564512.

The previous prime is 166897793. The next prime is 166897807. The reversal of 166897796 is 697798661.

It is not an unprimeable number, because it can be changed into a prime (166897793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926 + ... + 18293.

It is an arithmetic number, because the mean of its divisors is an integer number (13184920).

Almost surely, 2^166897796 is an apocalyptic number.

It is an amenable number.

166897796 is a deficient number, since it is larger than the sum of its proper divisors (149540284).

166897796 is a wasteful number, since it uses less digits than its factorization.

166897796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19403 (or 19401 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 59.

The square root of 166897796 is about 12918.8929866301. The cubic root of 166897796 is about 550.5754813932.

The spelling of 166897796 in words is "one hundred sixty-six million, eight hundred ninety-seven thousand, seven hundred ninety-six".