163256237760 has 448 divisors, whose sum is σ = 668533201920. Its totient is φ = 32753172480.

The previous prime is 163256237723. The next prime is 163256237761. The reversal of 163256237760 is 67732652361.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (163256237761) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2105602 + ... + 2181758.

Almost surely, 2^163256237760 is an apocalyptic number.

163256237760 is a gapful number since it is divisible by the number (10) 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 163256237760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334266600960).

163256237760 is an abundant number, since it is smaller than the sum of its proper divisors (505276964160).

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

163256237760 is a wasteful number, since it uses less digits than its factorization.

163256237760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76224 (or 76214 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 163256237760 in words is "one hundred sixty-three billion, two hundred fifty-six million, two hundred thirty-seven thousand, seven hundred sixty".