331693380810855 has 192 divisors, whose sum is σ = 697596480921600. Its totient is φ = 142327134093312.

The previous prime is 331693380810793. The next prime is 331693380810893. The reversal of 331693380810855 is 558018083396133.

It is a happy number.

331693380810855 is a `hidden beast` number, since 3 + 3 + 16 + 93 + 380 + 8 + 108 + 55 = 666.

It is not a de Polignac number, because 331693380810855 - 2⁸ = 331693380810599 is a prime.

It is a super-2 number, since 2×331693380810855² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 331693380810792 and 331693380810801.

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 191 ways as a sum of consecutive naturals, for example, 5306468512 + ... + 5306531018.

It is an arithmetic number, because the mean of its divisors is an integer number (3633315004800).

Almost surely, 2^{331693380810855} is an apocalyptic number.

331693380810855 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

331693380810855 is an abundant number, since it is smaller than the sum of its proper divisors (365903100110745).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331693380810855 is a wasteful number, since it uses less digits than its factorization.

331693380810855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65198 (or 65195 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 331693380810855 in words is "three hundred thirty-one trillion, six hundred ninety-three billion, three hundred eighty million, eight hundred ten thousand, eight hundred fifty-five".