16616061 has 24 divisors (see below), whose sum is σ = 29924544. Its totient is φ = 8631360.

The previous prime is 16616053. The next prime is 16616081. The reversal of 16616061 is 16061661.

It is not a de Polignac number, because 16616061 - 2³ = 16616053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616081) 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, 11296 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (1246856).

Almost surely, 2^16616061 is an apocalyptic number.

16616061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16616061 is a deficient number, since it is larger than the sum of its proper divisors (13308483).

16616061 is a wasteful number, since it uses less digits than its factorization.

16616061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24001 (or 23998 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 16616061 is about 4076.2802896759. The cubic root of 16616061 is about 255.1776846952.

The spelling of 16616061 in words is "sixteen million, six hundred sixteen thousand, sixty-one".