16261775061 has 32 divisors (see below), whose sum is σ = 24908083200. Its totient is φ = 9244488000.

The previous prime is 16261775039. The next prime is 16261775107. The reversal of 16261775061 is 16057716261.

It is not a de Polignac number, because 16261775061 - 2⁵ = 16261775029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16261771061) 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, 3420436 + ... + 3425186.

It is an arithmetic number, because the mean of its divisors is an integer number (778377600).

Almost surely, 2^16261775061 is an apocalyptic number.

It is an amenable number.

16261775061 is a deficient number, since it is larger than the sum of its proper divisors (8646308139).

16261775061 is a wasteful number, since it uses less digits than its factorization.

16261775061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 16261775061 in words is "sixteen billion, two hundred sixty-one million, seven hundred seventy-five thousand, sixty-one".