158238001922 has 162 divisors, whose sum is σ = 329806909467. Its totient is φ = 56706249600.

The previous prime is 158238001877. The next prime is 158238001927. The reversal of 158238001922 is 229100832851.

It can be written as a sum of positive squares in 5 ways, for example, as 46716067321 + 111521934601 = 216139^2 + 333949^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=281281.

It is a self number, because there is not a number n which added to its sum of digits gives 158238001922.

It is not an unprimeable number, because it can be changed into a prime (158238001927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 563124422 + ... + 563124702.

Almost surely, 2^158238001922 is an apocalyptic number.

158238001922 is an abundant number, since it is smaller than the sum of its proper divisors (171568907545).

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

158238001922 is a wasteful number, since it uses less digits than its factorization.

158238001922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 158238001922 in words is "one hundred fifty-eight billion, two hundred thirty-eight million, one thousand, nine hundred twenty-two".