158961796699381 has 96 divisors (see below), whose sum is σ = 193109827680000. Its totient is φ = 129684844412928.

The previous prime is 158961796699373. The next prime is 158961796699421. The reversal of 158961796699381 is 183996697169851.

158961796699381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158961796699381 - 2³ = 158961796699373 is a prime.

It is a super-2 number, since 2×158961796699381² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158961796699292 and 158961796699301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158961796690381) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5179749285 + ... + 5179779973.

It is an arithmetic number, because the mean of its divisors is an integer number (2011560705000).

Almost surely, 2^{158961796699381} is an apocalyptic number.

It is an amenable number.

158961796699381 is a deficient number, since it is larger than the sum of its proper divisors (34148030980619).

158961796699381 is a wasteful number, since it uses less digits than its factorization.

158961796699381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31391 (or 31374 counting only the distinct ones).

The product of its digits is 9523422720, while the sum is 88.

The spelling of 158961796699381 in words is "one hundred fifty-eight trillion, nine hundred sixty-one billion, seven hundred ninety-six million, six hundred ninety-nine thousand, three hundred eighty-one".