166947233949 has 32 divisors (see below), whose sum is σ = 248861036160. Its totient is φ = 110609380224.

The previous prime is 166947233897. The next prime is 166947233951. The reversal of 166947233949 is 949332749661.

166947233949 is a `hidden beast` number, since 16 + 69 + 472 + 3 + 3 + 94 + 9 = 666.

It is not a de Polignac number, because 166947233949 - 2⁸ = 166947233693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166947233249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14394897 + ... + 14406489.

It is an arithmetic number, because the mean of its divisors is an integer number (7776907380).

Almost surely, 2^166947233949 is an apocalyptic number.

It is an amenable number.

166947233949 is a deficient number, since it is larger than the sum of its proper divisors (81913802211).

166947233949 is a wasteful number, since it uses less digits than its factorization.

166947233949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14858 (or 14852 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 63.

The spelling of 166947233949 in words is "one hundred sixty-six billion, nine hundred forty-seven million, two hundred thirty-three thousand, nine hundred forty-nine".