158215680 has 400 divisors, whose sum is σ = 653574240. Its totient is φ = 35831808.

The previous prime is 158215649. The next prime is 158215693. The reversal of 158215680 is 86512851.

158215680 is a `hidden beast` number, since 1 + 582 + 15 + 68 + 0 = 666.

It is a super-4 number, since 4×158215680⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1451466 + ... + 1451574.

Almost surely, 2^158215680 is an apocalyptic number.

158215680 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 158215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326787120).

158215680 is an abundant number, since it is smaller than the sum of its proper divisors (495358560).

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

158215680 is an equidigital number, since it uses as much as digits as its factorization.

158215680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 158215680 is about 12578.3814539073. The cubic root of 158215680 is about 540.8578956026.

The spelling of 158215680 in words is "one hundred fifty-eight million, two hundred fifteen thousand, six hundred eighty".