55566447744667 has 16 divisors (see below), whose sum is σ = 57729257863200. Its totient is φ = 53440795457280.

The previous prime is 55566447744641. The next prime is 55566447744671. The reversal of 55566447744667 is 76644774466555.

It is a cyclic number.

It is not a de Polignac number, because 55566447744667 - 2⁷ = 55566447744539 is a prime.

It is a super-2 number, since 2×55566447744667² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55566447744593 and 55566447744602.

It is not an unprimeable number, because it can be changed into a prime (55566447244667) 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, 14751634 + ... + 18131287.

It is an arithmetic number, because the mean of its divisors is an integer number (3608078616450).

Almost surely, 2^{55566447744667} is an apocalyptic number.

55566447744667 is a deficient number, since it is larger than the sum of its proper divisors (2162810118533).

55566447744667 is a wasteful number, since it uses less digits than its factorization.

55566447744667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32883486.

The product of its digits is 14224896000, while the sum is 76.

The spelling of 55566447744667 in words is "fifty-five trillion, five hundred sixty-six billion, four hundred forty-seven million, seven hundred forty-four thousand, six hundred sixty-seven".