166749696 has 60 divisors (see below), whose sum is σ = 481264212. Its totient is φ = 55581696.

The previous prime is 166749691. The next prime is 166749721. The reversal of 166749696 is 696947661.

166749696 is a `hidden beast` number, since 1 + 6 + 67 + 496 + 96 = 666.

It is a super-2 number, since 2×166749696² = 55610922232184832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166749691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13486 + ... + 22701.

Almost surely, 2^166749696 is an apocalyptic number.

166749696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166749696 is an abundant number, since it is smaller than the sum of its proper divisors (314514516).

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

166749696 is an equidigital number, since it uses as much as digits as its factorization.

166749696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36211 (or 36192 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 166749696 is about 12913.1597992126. The cubic root of 166749696 is about 550.4125785840.

The spelling of 166749696 in words is "one hundred sixty-six million, seven hundred forty-nine thousand, six hundred ninety-six".