16774134065 has 16 divisors (see below), whose sum is σ = 21680664768. Its totient is φ = 12385154496.

The previous prime is 16774134023. The next prime is 16774134067. The reversal of 16774134065 is 56043147761.

It is not a de Polignac number, because 16774134065 - 2¹⁰ = 16774133041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16774134067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520142 + ... + 551448.

It is an arithmetic number, because the mean of its divisors is an integer number (1355041548).

Almost surely, 2^16774134065 is an apocalyptic number.

It is an amenable number.

16774134065 is a deficient number, since it is larger than the sum of its proper divisors (4906530703).

16774134065 is a wasteful number, since it uses less digits than its factorization.

16774134065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39568.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 16774134065 in words is "sixteen billion, seven hundred seventy-four million, one hundred thirty-four thousand, sixty-five".