15680157 has 8 divisors (see below), whose sum is σ = 21171840. Its totient is φ = 10320960.

The previous prime is 15680153. The next prime is 15680167. The reversal of 15680157 is 75108651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15680157 - 2² = 15680153 is a prime.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15680153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32844 + ... + 33317.

It is an arithmetic number, because the mean of its divisors is an integer number (2646480).

Almost surely, 2^15680157 is an apocalyptic number.

It is an amenable number.

15680157 is a deficient number, since it is larger than the sum of its proper divisors (5491683).

15680157 is an equidigital number, since it uses as much as digits as its factorization.

15680157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66243.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 15680157 is about 3959.8177988387. The cubic root of 15680157 is about 250.2938251984.

The spelling of 15680157 in words is "fifteen million, six hundred eighty thousand, one hundred fifty-seven".