158755720 has 16 divisors (see below), whose sum is σ = 357200460. Its totient is φ = 63502272.

The previous prime is 158755703. The next prime is 158755721. The reversal of 158755720 is 27557851.

158755720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 156900676 + 1855044 = 12526^2 + 1362^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3968893 = 158755720 / (1 + 5 + 8 + 7 + 5 + 5 + 7 + 2 + 0).

It is not an unprimeable number, because it can be changed into a prime (158755721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1984407 + ... + 1984486.

Almost surely, 2^158755720 is an apocalyptic number.

158755720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158755720 is an abundant number, since it is smaller than the sum of its proper divisors (198444740).

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

158755720 is a wasteful number, since it uses less digits than its factorization.

158755720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968904 (or 3968900 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 40.

The square root of 158755720 is about 12599.8301575855. The cubic root of 158755720 is about 541.4725696154.

The spelling of 158755720 in words is "one hundred fifty-eight million, seven hundred fifty-five thousand, seven hundred twenty".