16152661 has 4 divisors (see below), whose sum is σ = 18460192. Its totient is φ = 13845132.

The previous prime is 16152659. The next prime is 16152667. The reversal of 16152661 is 16625161.

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 not a de Polignac number, because 16152661 - 2¹ = 16152659 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 (16152667) 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, 1153755 + ... + 1153768.

It is an arithmetic number, because the mean of its divisors is an integer number (4615048).

Almost surely, 2^16152661 is an apocalyptic number.

It is an amenable number.

16152661 is a deficient number, since it is larger than the sum of its proper divisors (2307531).

16152661 is an equidigital number, since it uses as much as digits as its factorization.

16152661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307530.

The product of its digits is 2160, while the sum is 28.

The square root of 16152661 is about 4019.0373225438. The cubic root of 16152661 is about 252.7830945690.

The spelling of 16152661 in words is "sixteen million, one hundred fifty-two thousand, six hundred sixty-one".