165162227226156 has 144 divisors (see below), whose sum is σ = 433558897349760. Its totient is φ = 52972571842560.

The previous prime is 165162227226121. The next prime is 165162227226233. The reversal of 165162227226156 is 651622722261561.

165162227226156 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 62 + 2 + 272 + 261 + 56 = 666.

165162227226156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165162227226156² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2766831046 + ... + 2766890738.

It is an arithmetic number, because the mean of its divisors is an integer number (3010825676040).

Almost surely, 2^{165162227226156} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165162227226156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216779448674880).

165162227226156 is an abundant number, since it is smaller than the sum of its proper divisors (268396670123604).

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

165162227226156 is a wasteful number, since it uses less digits than its factorization.

165162227226156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85496 (or 85491 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 165162227226156 in words is "one hundred sixty-five trillion, one hundred sixty-two billion, two hundred twenty-seven million, two hundred twenty-six thousand, one hundred fifty-six".