194260808656 has 20 divisors (see below), whose sum is σ = 376430488132. Its totient is φ = 97117456896.

The previous prime is 194260808641. The next prime is 194260808671. The reversal of 194260808656 is 656808062491.

It is an interprime number because it is at equal distance from previous prime (194260808641) and next prime (194260808671).

It can be written as a sum of positive squares in 2 ways, for example, as 100796090256 + 93464718400 = 317484^2 + 305720^2 .

It is a junction number, because it is equal to n+sod(n) for n = 194260808597 and 194260808606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684855 + ... + 926038.

Almost surely, 2^194260808656 is an apocalyptic number.

194260808656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

194260808656 is a deficient number, since it is larger than the sum of its proper divisors (182169679476).

194260808656 is a wasteful number, since it uses less digits than its factorization.

194260808656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618438 (or 1618432 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 194260808656 in words is "one hundred ninety-four billion, two hundred sixty million, eight hundred eight thousand, six hundred fifty-six".