156142360521 has 12 divisors (see below), whose sum is σ = 257758817472. Its totient is φ = 89224205976.

The previous prime is 156142360499. The next prime is 156142360553. The reversal of 156142360521 is 125063241651.

156142360521 is a `hidden beast` number, since 1 + 5 + 6 + 1 + 4 + 23 + 605 + 21 = 666.

It is not a de Polignac number, because 156142360521 - 2¹⁷ = 156142229449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156142360021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239225021 + ... + 1239225146.

It is an arithmetic number, because the mean of its divisors is an integer number (21479901456).

Almost surely, 2^156142360521 is an apocalyptic number.

It is an amenable number.

156142360521 is a deficient number, since it is larger than the sum of its proper divisors (101616456951).

156142360521 is a wasteful number, since it uses less digits than its factorization.

156142360521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478450180 (or 2478450177 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 156142360521 in words is "one hundred fifty-six billion, one hundred forty-two million, three hundred sixty thousand, five hundred twenty-one".