158149575812 has 6 divisors (see below), whose sum is σ = 276761757678. Its totient is φ = 79074787904.

The previous prime is 158149575809. The next prime is 158149575827. The reversal of 158149575812 is 218575941851.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 158033281156 + 116294656 = 397534^2 + 10784^2 .

It is a super-2 number, since 2×158149575812² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19768696973 + ... + 19768696980.

It is an arithmetic number, because the mean of its divisors is an integer number (46126959613).

Almost surely, 2^158149575812 is an apocalyptic number.

It is an amenable number.

158149575812 is a deficient number, since it is larger than the sum of its proper divisors (118612181866).

158149575812 is a wasteful number, since it uses less digits than its factorization.

158149575812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39537393957 (or 39537393955 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 56.

The spelling of 158149575812 in words is "one hundred fifty-eight billion, one hundred forty-nine million, five hundred seventy-five thousand, eight hundred twelve".