16286465977 has 8 divisors (see below), whose sum is σ = 16358802152. Its totient is φ = 16214169600.

The previous prime is 16286465969. The next prime is 16286465981. The reversal of 16286465977 is 77956468261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6188024896 + 10098441081 = 78664^2 + 100491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16286465977 - 2³ = 16286465969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16286465677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062673 + ... + 1077889.

It is an arithmetic number, because the mean of its divisors is an integer number (2044850269).

Almost surely, 2^16286465977 is an apocalyptic number.

It is an amenable number.

16286465977 is a deficient number, since it is larger than the sum of its proper divisors (72336175).

16286465977 is a wasteful number, since it uses less digits than its factorization.

16286465977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19899.

The product of its digits is 30481920, while the sum is 61.

The spelling of 16286465977 in words is "sixteen billion, two hundred eighty-six million, four hundred sixty-five thousand, nine hundred seventy-seven".