158673306240 has 256 divisors, whose sum is σ = 575677065600. Its totient is φ = 41280675840.

The previous prime is 158673306191. The next prime is 158673306247. The reversal of 158673306240 is 42603376851.

158673306240 is a `hidden beast` number, since 1 + 586 + 7 + 3 + 3 + 0 + 62 + 4 + 0 = 666.

It is a super-2 number, since 2×158673306240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (158673306247) 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, 596499 + ... + 820461.

Almost surely, 2^158673306240 is an apocalyptic number.

158673306240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158673306240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287838532800).

158673306240 is an abundant number, since it is smaller than the sum of its proper divisors (417003759360).

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

158673306240 is a wasteful number, since it uses less digits than its factorization.

158673306240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224032 (or 224014 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 158673306240 in words is "one hundred fifty-eight billion, six hundred seventy-three million, three hundred six thousand, two hundred forty".