16740566677 has 4 divisors (see below), whose sum is σ = 16751736000. Its totient is φ = 16729397356.

The previous prime is 16740566671. The next prime is 16740566693. The reversal of 16740566677 is 77666504761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77666504761 = 6263 ⋅12400847.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16740566677 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 (16740566671) 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, 5582413 + ... + 5585410.

It is an arithmetic number, because the mean of its divisors is an integer number (4187934000).

Almost surely, 2^16740566677 is an apocalyptic number.

It is an amenable number.

16740566677 is a deficient number, since it is larger than the sum of its proper divisors (11169323).

16740566677 is a wasteful number, since it uses less digits than its factorization.

16740566677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11169322.

The product of its (nonzero) digits is 8890560, while the sum is 55.

The spelling of 16740566677 in words is "sixteen billion, seven hundred forty million, five hundred sixty-six thousand, six hundred seventy-seven".