158791149913440 has 96 divisors (see below), whose sum is σ = 545664133357056. Its totient is φ = 38494824220160.

The previous prime is 158791149913411. The next prime is 158791149913441. The reversal of 158791149913440 is 44319941197851.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×158791149913440² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158791149913441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15037035432 + ... + 15037045991.

It is an arithmetic number, because the mean of its divisors is an integer number (5684001389136).

Almost surely, 2^{158791149913440} is an apocalyptic number.

158791149913440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158791149913440 is an abundant number, since it is smaller than the sum of its proper divisors (386872983443616).

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

158791149913440 is a wasteful number, since it uses less digits than its factorization.

158791149913440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30074081452 (or 30074081444 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 158791149913440 in words is "one hundred fifty-eight trillion, seven hundred ninety-one billion, one hundred forty-nine million, nine hundred thirteen thousand, four hundred forty".