166379002903 has 4 divisors (see below), whose sum is σ = 167689073920. Its totient is φ = 165068931888.

The previous prime is 166379002897. The next prime is 166379002927. The reversal of 166379002903 is 309200973661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309200973661 = 71 ⋅4354943291.

It is a cyclic number.

It is not a de Polignac number, because 166379002903 - 2⁵ = 166379002871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166379002943) 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, 655035318 + ... + 655035571.

It is an arithmetic number, because the mean of its divisors is an integer number (41922268480).

Almost surely, 2^166379002903 is an apocalyptic number.

166379002903 is a deficient number, since it is larger than the sum of its proper divisors (1310071017).

166379002903 is a wasteful number, since it uses less digits than its factorization.

166379002903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310071016.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 166379002903 in words is "one hundred sixty-six billion, three hundred seventy-nine million, two thousand, nine hundred three".