16845562977 has 16 divisors (see below), whose sum is σ = 22602767040. Its totient is φ = 11159590592.

The previous prime is 16845562969. The next prime is 16845562999. The reversal of 16845562977 is 77926554861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16845562977 - 2³ = 16845562969 is a prime.

It is a super-3 number, since 3×16845562977³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16845562977.

It is not an unprimeable number, because it can be changed into a prime (16845562927) 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, 277399 + ... + 332627.

It is an arithmetic number, because the mean of its divisors is an integer number (1412672940).

Almost surely, 2^16845562977 is an apocalyptic number.

It is an amenable number.

16845562977 is a deficient number, since it is larger than the sum of its proper divisors (5757204063).

16845562977 is a wasteful number, since it uses less digits than its factorization.

16845562977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55872.

The product of its digits is 25401600, while the sum is 60.

The spelling of 16845562977 in words is "sixteen billion, eight hundred forty-five million, five hundred sixty-two thousand, nine hundred seventy-seven".