158011020036 has 81 divisors (see below), whose sum is σ = 404168647701. Its totient is φ = 52051025664.

The previous prime is 158011020023. The next prime is 158011020047. The reversal of 158011020036 is 630020110851.

The square root of 158011020036 is 397506.

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., 70952976900 + 87058043136 = 266370^2 + 295056^2 .

It is a junction number, because it is equal to n+sod(n) for n = 158011019991 and 158011020009.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 231348151 + ... + 231348833.

Almost surely, 2^158011020036 is an apocalyptic number.

158011020036 is the 397506-th square number.

It is an amenable number.

158011020036 is an abundant number, since it is smaller than the sum of its proper divisors (246157627665).

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

158011020036 is an frugal number, since it uses more digits than its factorization.

158011020036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 158011020036 its reverse (630020110851), we get a palindrome (788031130887).

The spelling of 158011020036 in words is "one hundred fifty-eight billion, eleven million, twenty thousand, thirty-six".