16156601 has 4 divisors (see below), whose sum is σ = 16172112. Its totient is φ = 16141092.

The previous prime is 16156597. The next prime is 16156607. The reversal of 16156601 is 10665161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16156601 - 2² = 16156597 is a prime.

It is a super-2 number, since 2×16156601² = 522071511746402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16156607) 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, 6071 + ... + 8316.

It is an arithmetic number, because the mean of its divisors is an integer number (4043028).

Almost surely, 2^16156601 is an apocalyptic number.

It is an amenable number.

16156601 is a deficient number, since it is larger than the sum of its proper divisors (15511).

16156601 is a wasteful number, since it uses less digits than its factorization.

16156601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15510.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16156601 is about 4019.5274597893. The cubic root of 16156601 is about 252.8036460728.

The spelling of 16156601 in words is "sixteen million, one hundred fifty-six thousand, six hundred one".