16025661 has 32 divisors (see below), whose sum is σ = 24931200. Its totient is φ = 10160640.

The previous prime is 16025657. The next prime is 16025677. The reversal of 16025661 is 16652061.

It is a happy number.

16025661 is a `hidden beast` number, since 1 + 602 + 56 + 6 + 1 = 666.

16025661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16025661 - 2² = 16025657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16025651) 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, 75846 + ... + 76056.

It is an arithmetic number, because the mean of its divisors is an integer number (779100).

Almost surely, 2^16025661 is an apocalyptic number.

It is an amenable number.

16025661 is a deficient number, since it is larger than the sum of its proper divisors (8905539).

16025661 is a wasteful number, since it uses less digits than its factorization.

16025661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16025661 is about 4003.2063399230. The cubic root of 16025661 is about 252.1188498342.

The spelling of 16025661 in words is "sixteen million, twenty-five thousand, six hundred sixty-one".