16330557 has 24 divisors (see below), whose sum is σ = 24359616. Its totient is φ = 9696384.

The previous prime is 16330553. The next prime is 16330577. The reversal of 16330557 is 75503361.

It is not a de Polignac number, because 16330557 - 2² = 16330553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16330553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17968 + ... + 18854.

It is an arithmetic number, because the mean of its divisors is an integer number (1014984).

Almost surely, 2^16330557 is an apocalyptic number.

16330557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16330557 is a deficient number, since it is larger than the sum of its proper divisors (8029059).

16330557 is a wasteful number, since it uses less digits than its factorization.

16330557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 16330557 is about 4041.1083875590. The cubic root of 16330557 is about 253.7077103605.

The spelling of 16330557 in words is "sixteen million, three hundred thirty thousand, five hundred fifty-seven".