158232216554 has 4 divisors (see below), whose sum is σ = 237348324834. Its totient is φ = 79116108276.

The previous prime is 158232216533. The next prime is 158232216557. The reversal of 158232216554 is 455612232851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 85506532225 + 72725684329 = 292415^2 + 269677^2 .

It is not an unprimeable number, because it can be changed into a prime (158232216557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39558054137 + ... + 39558054140.

Almost surely, 2^158232216554 is an apocalyptic number.

158232216554 is a deficient number, since it is larger than the sum of its proper divisors (79116108280).

158232216554 is an equidigital number, since it uses as much as digits as its factorization.

158232216554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79116108279.

The product of its digits is 576000, while the sum is 44.

The spelling of 158232216554 in words is "one hundred fifty-eight billion, two hundred thirty-two million, two hundred sixteen thousand, five hundred fifty-four".