158031047986561 has 16 divisors (see below), whose sum is σ = 159719580966400. Its totient is φ = 156345531870528.

The previous prime is 158031047986543. The next prime is 158031047986577. The reversal of 158031047986561 is 165689740130851.

It is a cyclic number.

It is not a de Polignac number, because 158031047986561 - 2²⁹ = 158030511115649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158031047986493 and 158031047986502.

It is not an unprimeable number, because it can be changed into a prime (158031047986061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654444595 + ... + 654686023.

It is an arithmetic number, because the mean of its divisors is an integer number (9982473810400).

Almost surely, 2^{158031047986561} is an apocalyptic number.

It is an amenable number.

158031047986561 is a deficient number, since it is larger than the sum of its proper divisors (1688532979839).

158031047986561 is a wasteful number, since it uses less digits than its factorization.

158031047986561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247648.

The product of its (nonzero) digits is 43545600, while the sum is 64.

The spelling of 158031047986561 in words is "one hundred fifty-eight trillion, thirty-one billion, forty-seven million, nine hundred eighty-six thousand, five hundred sixty-one".