158631444732 has 12 divisors (see below), whose sum is σ = 370140037736. Its totient is φ = 52877148240.

The previous prime is 158631444721. The next prime is 158631444739. The reversal of 158631444732 is 237444136851.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158631444739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6609643519 + ... + 6609643542.

Almost surely, 2^158631444732 is an apocalyptic number.

158631444732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158631444732 is an abundant number, since it is smaller than the sum of its proper divisors (211508593004).

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

158631444732 is a wasteful number, since it uses less digits than its factorization.

158631444732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13219287068 (or 13219287066 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The spelling of 158631444732 in words is "one hundred fifty-eight billion, six hundred thirty-one million, four hundred forty-four thousand, seven hundred thirty-two".