163115401212 has 48 divisors (see below), whose sum is σ = 422997154720. Its totient is φ = 54358252416.

The previous prime is 163115401199. The next prime is 163115401271. The reversal of 163115401212 is 212104511361.

163115401212 is a `hidden beast` number, since 1 + 6 + 31 + 15 + 401 + 212 = 666.

It is a super-2 number, since 2×163115401212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252018 + ... + 624294.

Almost surely, 2^163115401212 is an apocalyptic number.

163115401212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163115401212 is an abundant number, since it is smaller than the sum of its proper divisors (259881753508).

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

163115401212 is a wasteful number, since it uses less digits than its factorization.

163115401212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376347 (or 376339 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 163115401212 its reverse (212104511361), we get a palindrome (375219912573).

The spelling of 163115401212 in words is "one hundred sixty-three billion, one hundred fifteen million, four hundred one thousand, two hundred twelve".