159540508494 has 64 divisors (see below), whose sum is σ = 357194695680. Its totient is φ = 52782528960.

The previous prime is 159540508459. The next prime is 159540508499. The reversal of 159540508494 is 494805045951.

159540508494 is a `hidden beast` number, since 1 + 5 + 9 + 5 + 40 + 508 + 4 + 94 = 666.

It is a super-2 number, since 2×159540508494² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 159540508494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159540508499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4162522 + ... + 4200674.

It is an arithmetic number, because the mean of its divisors is an integer number (5581167120).

Almost surely, 2^159540508494 is an apocalyptic number.

159540508494 is an abundant number, since it is smaller than the sum of its proper divisors (197654187186).

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

159540508494 is a wasteful number, since it uses less digits than its factorization.

159540508494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38742 (or 38736 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 159540508494 in words is "one hundred fifty-nine billion, five hundred forty million, five hundred eight thousand, four hundred ninety-four".