166394496 has 32 divisors (see below), whose sum is σ = 441986400. Its totient is φ = 55464704.

The previous prime is 166394491. The next prime is 166394551. The reversal of 166394496 is 694493661.

166394496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (166394491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216276 + ... + 217043.

It is an arithmetic number, because the mean of its divisors is an integer number (13812075).

Almost surely, 2^166394496 is an apocalyptic number.

166394496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166394496 is an abundant number, since it is smaller than the sum of its proper divisors (275591904).

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

166394496 is an equidigital number, since it uses as much as digits as its factorization.

166394496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433336 (or 433324 counting only the distinct ones).

The product of its digits is 839808, while the sum is 48.

The square root of 166394496 is about 12899.3990557700. The cubic root of 166394496 is about 550.0214823565.

The spelling of 166394496 in words is "one hundred sixty-six million, three hundred ninety-four thousand, four hundred ninety-six".