158166720412 has 6 divisors (see below), whose sum is σ = 276791760728. Its totient is φ = 79083360204.

The previous prime is 158166720407. The next prime is 158166720451. The reversal of 158166720412 is 214027661851.

It is a super-2 number, since 2×158166720412² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19770840048 + ... + 19770840055.

Almost surely, 2^158166720412 is an apocalyptic number.

It is an amenable number.

158166720412 is a deficient number, since it is larger than the sum of its proper divisors (118625040316).

158166720412 is a wasteful number, since it uses less digits than its factorization.

158166720412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39541680107 (or 39541680105 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 158166720412 in words is "one hundred fifty-eight billion, one hundred sixty-six million, seven hundred twenty thousand, four hundred twelve".