158121145394784 has 288 divisors, whose sum is σ = 559342984715424. Its totient is φ = 41627944304640.

The previous prime is 158121145394777. The next prime is 158121145394809. The reversal of 158121145394784 is 487493541121851.

158121145394784 is a `hidden beast` number, since 1 + 5 + 8 + 1 + 2 + 1 + 14 + 539 + 4 + 7 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

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, 112222899 + ... + 113623154.

It is an arithmetic number, because the mean of its divisors is an integer number (1942163141373).

Almost surely, 2^{158121145394784} is an apocalyptic number.

It is an amenable number.

158121145394784 is an abundant number, since it is smaller than the sum of its proper divisors (401221839320640).

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

158121145394784 is a wasteful number, since it uses less digits than its factorization.

158121145394784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225846110 (or 225846099 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 63.

The spelling of 158121145394784 in words is "one hundred fifty-eight trillion, one hundred twenty-one billion, one hundred forty-five million, three hundred ninety-four thousand, seven hundred eighty-four".