158497985075040 has 240 divisors, whose sum is σ = 602393945197968. Its totient is φ = 39014888592384.

The previous prime is 158497985075033. The next prime is 158497985075071. The reversal of 158497985075040 is 40570589794851.

It is a happy number.

158497985075040 is a `hidden beast` number, since 1 + 5 + 8 + 4 + 9 + 79 + 8 + 507 + 5 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×158497985075040² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 158497985075040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 470207782 + ... + 470544741.

Almost surely, 2^{158497985075040} is an apocalyptic number.

158497985075040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158497985075040 is an abundant number, since it is smaller than the sum of its proper divisors (443895960122928).

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

158497985075040 is a wasteful number, since it uses less digits than its factorization.

158497985075040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940752563 (or 940752546 counting only the distinct ones).

The product of its (nonzero) digits is 508032000, while the sum is 72.

The spelling of 158497985075040 in words is "one hundred fifty-eight trillion, four hundred ninety-seven billion, nine hundred eighty-five million, seventy-five thousand, forty".