194170803956 has 24 divisors (see below), whose sum is σ = 359690913120. Its totient is φ = 91557682272.

The previous prime is 194170803929. The next prime is 194170803973. The reversal of 194170803956 is 659308071491.

It is a super-2 number, since 2×194170803956² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194170803898 and 194170803907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19458806 + ... + 19468781.

It is an arithmetic number, because the mean of its divisors is an integer number (14987121380).

Almost surely, 2^194170803956 is an apocalyptic number.

It is an amenable number.

194170803956 is a deficient number, since it is larger than the sum of its proper divisors (165520109164).

194170803956 is a wasteful number, since it uses less digits than its factorization.

194170803956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38927663 (or 38927661 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 194170803956 in words is "one hundred ninety-four billion, one hundred seventy million, eight hundred three thousand, nine hundred fifty-six".