166404330156 has 48 divisors (see below), whose sum is σ = 393763485024. Its totient is φ = 54684942336.

The previous prime is 166404330151. The next prime is 166404330167. The reversal of 166404330156 is 651033404661.

It is not an unprimeable number, because it can be changed into a prime (166404330151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2077996 + ... + 2156588.

It is an arithmetic number, because the mean of its divisors is an integer number (8203405938).

Almost surely, 2^166404330156 is an apocalyptic number.

It is an amenable number.

166404330156 is an abundant number, since it is smaller than the sum of its proper divisors (227359154868).

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

166404330156 is a wasteful number, since it uses less digits than its factorization.

166404330156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81090 (or 81088 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 166404330156 in words is "one hundred sixty-six billion, four hundred four million, three hundred thirty thousand, one hundred fifty-six".