16277044745 has 32 divisors (see below), whose sum is σ = 21984873120. Its totient is φ = 11485716480.

The previous prime is 16277044741. The next prime is 16277044753. The reversal of 16277044745 is 54744077261.

It can be written as a sum of positive squares in 16 ways, for example, as 4717354489 + 11559690256 = 68683^2 + 107516^2 .

It is not a de Polignac number, because 16277044745 - 2² = 16277044741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16277044745.

It is not an unprimeable number, because it can be changed into a prime (16277044741) 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, 138335 + ... + 227355.

It is an arithmetic number, because the mean of its divisors is an integer number (687027285).

Almost surely, 2^16277044745 is an apocalyptic number.

It is an amenable number.

16277044745 is a deficient number, since it is larger than the sum of its proper divisors (5707828375).

16277044745 is a wasteful number, since it uses less digits than its factorization.

16277044745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89165.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 16277044745 in words is "sixteen billion, two hundred seventy-seven million, forty-four thousand, seven hundred forty-five".