163005634065256 has 64 divisors (see below), whose sum is σ = 313040634318720. Its totient is φ = 79531771038720.

The previous prime is 163005634065251. The next prime is 163005634065269. The reversal of 163005634065256 is 652560436500361.

It is a super-2 number, since 2×163005634065256² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163005634065251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1574714541 + ... + 1574818051.

It is an arithmetic number, because the mean of its divisors is an integer number (4891259911230).

Almost surely, 2^{163005634065256} is an apocalyptic number.

It is an amenable number.

163005634065256 is a deficient number, since it is larger than the sum of its proper divisors (150035000253464).

163005634065256 is a wasteful number, since it uses less digits than its factorization.

163005634065256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107866 (or 107862 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 52.

The spelling of 163005634065256 in words is "one hundred sixty-three trillion, five billion, six hundred thirty-four million, sixty-five thousand, two hundred fifty-six".