158663242220658 has 64 divisors (see below), whose sum is σ = 389536884480000. Its totient is φ = 42946441492752.

The previous prime is 158663242220657. The next prime is 158663242220669. The reversal of 158663242220658 is 856022242366851.

It is not an unprimeable number, because it can be changed into a prime (158663242220653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2028798838 + ... + 2028877041.

It is an arithmetic number, because the mean of its divisors is an integer number (6086513820000).

Almost surely, 2^{158663242220658} is an apocalyptic number.

158663242220658 is an abundant number, since it is smaller than the sum of its proper divisors (230873642259342).

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

158663242220658 is a wasteful number, since it uses less digits than its factorization.

158663242220658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057675924 (or 4057675910 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 60.

The spelling of 158663242220658 in words is "one hundred fifty-eight trillion, six hundred sixty-three billion, two hundred forty-two million, two hundred twenty thousand, six hundred fifty-eight".