16654157 has 4 divisors (see below), whose sum is σ = 17935260. Its totient is φ = 15373056.

The previous prime is 16654153. The next prime is 16654189. The reversal of 16654157 is 75145661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3556996 + 13097161 = 1886^2 + 3619^2 .

It is a cyclic number.

It is not a de Polignac number, because 16654157 - 2² = 16654153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16654153) 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, 640532 + ... + 640557.

It is an arithmetic number, because the mean of its divisors is an integer number (4483815).

Almost surely, 2^16654157 is an apocalyptic number.

It is an amenable number.

16654157 is a deficient number, since it is larger than the sum of its proper divisors (1281103).

16654157 is a wasteful number, since it uses less digits than its factorization.

16654157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281102.

The product of its digits is 25200, while the sum is 35.

The square root of 16654157 is about 4080.9505020277. The cubic root of 16654157 is about 255.3725529646.

The spelling of 16654157 in words is "sixteen million, six hundred fifty-four thousand, one hundred fifty-seven".