163011505012 has 12 divisors (see below), whose sum is σ = 285292214116. Its totient is φ = 81499443840.

The previous prime is 163011504973. The next prime is 163011505051. The reversal of 163011505012 is 210505110361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (163011504973) and next prime (163011505051).

It can be written as a sum of positive squares in 2 ways, for example, as 24572443536 + 138439061476 = 156756^2 + 372074^2 .

It is a super-4 number, since 4×163011505012⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518789 + ... + 1622572.

Almost surely, 2^163011505012 is an apocalyptic number.

It is an amenable number.

163011505012 is a deficient number, since it is larger than the sum of its proper divisors (122280709104).

163011505012 is a wasteful number, since it uses less digits than its factorization.

163011505012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154338 (or 3154336 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 163011505012 its reverse (210505110361), we get a palindrome (373516615373).

The spelling of 163011505012 in words is "one hundred sixty-three billion, eleven million, five hundred five thousand, twelve".