16051861 has 12 divisors (see below), whose sum is σ = 19485792. Its totient is φ = 13159608.

The previous prime is 16051853. The next prime is 16051891. The reversal of 16051861 is 16815061.

It is not a de Polignac number, because 16051861 - 2³ = 16051853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16051811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5995 + ... + 8248.

It is an arithmetic number, because the mean of its divisors is an integer number (1623816).

Almost surely, 2^16051861 is an apocalyptic number.

It is an amenable number.

16051861 is a deficient number, since it is larger than the sum of its proper divisors (3433931).

16051861 is a wasteful number, since it uses less digits than its factorization.

16051861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14280 (or 14273 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 16051861 is about 4006.4773804428. The cubic root of 16051861 is about 252.2561695448.

The spelling of 16051861 in words is "sixteen million, fifty-one thousand, eight hundred sixty-one".