16056645 has 32 divisors (see below), whose sum is σ = 29251584. Its totient is φ = 7444800.

The previous prime is 16056643. The next prime is 16056659. The reversal of 16056645 is 54665061.

It is not a de Polignac number, because 16056645 - 2¹ = 16056643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16056643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1680 + ... + 5910.

It is an arithmetic number, because the mean of its divisors is an integer number (914112).

Almost surely, 2^16056645 is an apocalyptic number.

16056645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16056645 is a deficient number, since it is larger than the sum of its proper divisors (13194939).

16056645 is a wasteful number, since it uses less digits than its factorization.

16056645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 16056645 is about 4007.0743691626. The cubic root of 16056645 is about 252.2812273589.

The spelling of 16056645 in words is "sixteen million, fifty-six thousand, six hundred forty-five".