166389802 has 16 divisors (see below), whose sum is σ = 262978560. Its totient is φ = 78738912.

The previous prime is 166389799. The next prime is 166389827. The reversal of 166389802 is 208983661.

166389802 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61878 + ... + 64510.

It is an arithmetic number, because the mean of its divisors is an integer number (16436160).

Almost surely, 2^166389802 is an apocalyptic number.

166389802 is a deficient number, since it is larger than the sum of its proper divisors (96588758).

166389802 is a wasteful number, since it uses less digits than its factorization.

166389802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 166389802 is about 12899.2171080264. The cubic root of 166389802 is about 550.0163102601.

The spelling of 166389802 in words is "one hundred sixty-six million, three hundred eighty-nine thousand, eight hundred two".