16157966 has 16 divisors (see below), whose sum is σ = 26805168. Its totient is φ = 7243200.

The previous prime is 16157957. The next prime is 16157971. The reversal of 16157966 is 66975161.

It is a super-2 number, since 2×16157966² = 522159730514312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3425 + ... + 6636.

It is an arithmetic number, because the mean of its divisors is an integer number (1675323).

Almost surely, 2^16157966 is an apocalyptic number.

16157966 is a deficient number, since it is larger than the sum of its proper divisors (10647202).

16157966 is a wasteful number, since it uses less digits than its factorization.

16157966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10147.

The product of its digits is 68040, while the sum is 41.

The square root of 16157966 is about 4019.6972522816. The cubic root of 16157966 is about 252.8107652942.

The spelling of 16157966 in words is "sixteen million, one hundred fifty-seven thousand, nine hundred sixty-six".