203056404166 has 32 divisors (see below), whose sum is σ = 391991592960. Its totient is φ = 76560854400.

The previous prime is 203056404041. The next prime is 203056404209. The reversal of 203056404166 is 661404650302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21262131 + ... + 21271678.

It is an arithmetic number, because the mean of its divisors is an integer number (12249737280).

Almost surely, 2^203056404166 is an apocalyptic number.

203056404166 is a deficient number, since it is larger than the sum of its proper divisors (188935188794).

203056404166 is a wasteful number, since it uses less digits than its factorization.

203056404166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42533860.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 203056404166 in words is "two hundred three billion, fifty-six million, four hundred four thousand, one hundred sixty-six".