16086542977 has 4 divisors (see below), whose sum is σ = 16086798036. Its totient is φ = 16086287920.

The previous prime is 16086542921. The next prime is 16086543001. The reversal of 16086542977 is 77924568061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12896100721 + 3190442256 = 113561^2 + 56484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16086542977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16086542377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43803 + ... + 184639.

It is an arithmetic number, because the mean of its divisors is an integer number (4021699509).

Almost surely, 2^16086542977 is an apocalyptic number.

It is an amenable number.

16086542977 is a deficient number, since it is larger than the sum of its proper divisors (255059).

16086542977 is a wasteful number, since it uses less digits than its factorization.

16086542977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255058.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 16086542977 in words is "sixteen billion, eighty-six million, five hundred forty-two thousand, nine hundred seventy-seven".