16655457 has 48 divisors (see below), whose sum is σ = 29016960. Its totient is φ = 8322912.

The previous prime is 16655453. The next prime is 16655459. The reversal of 16655457 is 75455661.

16655457 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16655457 - 2² = 16655453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (126000) is a multiple of the sum of its prime divisors (42).

It is not an unprimeable number, because it can be changed into a prime (16655453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 876594 + ... + 876612.

It is an arithmetic number, because the mean of its divisors is an integer number (604520).

Almost surely, 2^16655457 is an apocalyptic number.

It is an amenable number.

16655457 is a deficient number, since it is larger than the sum of its proper divisors (12361503).

16655457 is an equidigital number, since it uses as much as digits as its factorization.

16655457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 42 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The square root of 16655457 is about 4081.1097755390. The cubic root of 16655457 is about 255.3791974655.

The spelling of 16655457 in words is "sixteen million, six hundred fifty-five thousand, four hundred fifty-seven".