163065781032 has 128 divisors (see below), whose sum is σ = 535007462400. Its totient is φ = 40125542400.

The previous prime is 163065781001. The next prime is 163065781061. The reversal of 163065781032 is 230187560361.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2286969 + ... + 2357192.

It is an arithmetic number, because the mean of its divisors is an integer number (4179745800).

Almost surely, 2^163065781032 is an apocalyptic number.

163065781032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163065781032 is an abundant number, since it is smaller than the sum of its proper divisors (371941681368).

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

163065781032 is a wasteful number, since it uses less digits than its factorization.

163065781032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644207 (or 4644203 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 163065781032 in words is "one hundred sixty-three billion, sixty-five million, seven hundred eighty-one thousand, thirty-two".