16116777 has 6 divisors (see below), whose sum is σ = 23279802. Its totient is φ = 10744512.

The previous prime is 16116761. The next prime is 16116797. The reversal of 16116777 is 77761161.

It can be written as a sum of positive squares in only one way, i.e., 8696601 + 7420176 = 2949^2 + 2724^2 .

It is not a de Polignac number, because 16116777 - 2⁴ = 16116761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16116797) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 895368 + ... + 895385.

It is an arithmetic number, because the mean of its divisors is an integer number (3879967).

Almost surely, 2^16116777 is an apocalyptic number.

It is an amenable number.

16116777 is a deficient number, since it is larger than the sum of its proper divisors (7163025).

16116777 is a wasteful number, since it uses less digits than its factorization.

16116777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790759 (or 1790756 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 16116777 is about 4014.5705872484. The cubic root of 16116777 is about 252.5957653934.

The spelling of 16116777 in words is "sixteen million, one hundred sixteen thousand, seven hundred seventy-seven".