16400158 has 4 divisors (see below), whose sum is σ = 24600240. Its totient is φ = 8200078.

The previous prime is 16400143. The next prime is 16400183. The reversal of 16400158 is 85100461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85100461 = 41 ⋅2075621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4100038 + ... + 4100041.

It is an arithmetic number, because the mean of its divisors is an integer number (6150060).

Almost surely, 2^16400158 is an apocalyptic number.

16400158 is a deficient number, since it is larger than the sum of its proper divisors (8200082).

16400158 is an equidigital number, since it uses as much as digits as its factorization.

16400158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8200081.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 16400158 is about 4049.7108538759. The cubic root of 16400158 is about 254.0676344575.

The spelling of 16400158 in words is "sixteen million, four hundred thousand, one hundred fifty-eight".