158386775040 has 1056 divisors, whose sum is σ = 636048032256. Its totient is φ = 36097228800.

The previous prime is 158386775009. The next prime is 158386775119. The reversal of 158386775040 is 40577683851.

It is a happy number.

158386775040 is a `hidden beast` number, since 1 + 58 + 3 + 86 + 7 + 7 + 504 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1048918965 + ... + 1048919115.

Almost surely, 2^158386775040 is an apocalyptic number.

158386775040 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 158386775040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318024016128).

158386775040 is an abundant number, since it is smaller than the sum of its proper divisors (477661257216).

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

158386775040 is a wasteful number, since it uses less digits than its factorization.

158386775040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 158386775040 in words is "one hundred fifty-eight billion, three hundred eighty-six million, seven hundred seventy-five thousand, forty".