16332861 has 4 divisors (see below), whose sum is σ = 21777152. Its totient is φ = 10888572.

The previous prime is 16332857. The next prime is 16332863. The reversal of 16332861 is 16823361.

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 16332861 - 2² = 16332857 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 (16332863) 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, 2722141 + ... + 2722146.

It is an arithmetic number, because the mean of its divisors is an integer number (5444288).

Almost surely, 2^16332861 is an apocalyptic number.

It is an amenable number.

16332861 is a deficient number, since it is larger than the sum of its proper divisors (5444291).

16332861 is an equidigital number, since it uses as much as digits as its factorization.

16332861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444290.

The product of its digits is 5184, while the sum is 30.

The square root of 16332861 is about 4041.3934478098. The cubic root of 16332861 is about 253.7196412676.

The spelling of 16332861 in words is "sixteen million, three hundred thirty-two thousand, eight hundred sixty-one".