158504311876 has 27 divisors (see below), whose sum is σ = 292777944669. Its totient is φ = 75073823568.

The previous prime is 158504311873. The next prime is 158504311897. The reversal of 158504311876 is 678113405851.

It is a happy number.

The square root of 158504311876 is 398126.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 120235562500 + 38268749376 = 346750^2 + 195624^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158504311873) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15123550 + ... + 15134026.

Almost surely, 2^158504311876 is an apocalyptic number.

158504311876 is the 398126-th square number.

It is an amenable number.

158504311876 is a deficient number, since it is larger than the sum of its proper divisors (134273632793).

158504311876 is an frugal number, since it uses more digits than its factorization.

158504311876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20996 (or 10498 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

Multiplying 158504311876 by its sum of digits (49), we get a square (7766711281924 = 2786882²).

The spelling of 158504311876 in words is "one hundred fifty-eight billion, five hundred four million, three hundred eleven thousand, eight hundred seventy-six".