16277776957 has 8 divisors (see below), whose sum is σ = 18452540960. Its totient is φ = 14234816880.

The previous prime is 16277776939. The next prime is 16277776961. The reversal of 16277776957 is 75967777261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16277776957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16277776057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32950719 + ... + 32951212.

It is an arithmetic number, because the mean of its divisors is an integer number (2306567620).

Almost surely, 2^16277776957 is an apocalyptic number.

It is an amenable number.

16277776957 is a deficient number, since it is larger than the sum of its proper divisors (2174764003).

16277776957 is a wasteful number, since it uses less digits than its factorization.

16277776957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65901963.

The product of its digits is 54454680, while the sum is 64.

The spelling of 16277776957 in words is "sixteen billion, two hundred seventy-seven million, seven hundred seventy-six thousand, nine hundred fifty-seven".