163156385166 has 32 divisors (see below), whose sum is σ = 327803414400. Its totient is φ = 54137587680.

The previous prime is 163156385141. The next prime is 163156385167. The reversal of 163156385166 is 661583651361.

It is a super-2 number, since 2×163156385166² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163156385167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088565 + ... + 1229343.

It is an arithmetic number, because the mean of its divisors is an integer number (10243856700).

Almost surely, 2^163156385166 is an apocalyptic number.

163156385166 is an abundant number, since it is smaller than the sum of its proper divisors (164647029234).

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

163156385166 is a wasteful number, since it uses less digits than its factorization.

163156385166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141664.

The product of its digits is 2332800, while the sum is 51.

The spelling of 163156385166 in words is "one hundred sixty-three billion, one hundred fifty-six million, three hundred eighty-five thousand, one hundred sixty-six".