163765262656 has 56 divisors (see below), whose sum is σ = 329222770560. Its totient is φ = 80817580032.

The previous prime is 163765262629. The next prime is 163765262663. The reversal of 163765262656 is 656262567361.

It is a super-2 number, since 2×163765262656² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163765262597 and 163765262606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1681075 + ... + 1775821.

Almost surely, 2^163765262656 is an apocalyptic number.

163765262656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163765262656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164611385280).

163765262656 is an abundant number, since it is smaller than the sum of its proper divisors (165457507904).

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

163765262656 is a wasteful number, since it uses less digits than its factorization.

163765262656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95111 (or 95101 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 55.

The spelling of 163765262656 in words is "one hundred sixty-three billion, seven hundred sixty-five million, two hundred sixty-two thousand, six hundred fifty-six".