5666667889450 has 12 divisors (see below), whose sum is σ = 10540002274470. Its totient is φ = 2266667155760.

The previous prime is 5666667889313. The next prime is 5666667889453. The reversal of 5666667889450 is 549887666665.

It can be written as a sum of positive squares in 3 ways, for example, as 4388065542441 + 1278602347009 = 2094771^2 + 1130753^2 .

It is a super-2 number, since 2×5666667889450² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5666667889453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56666678845 + ... + 56666678944.

Almost surely, 2^{5666667889450} is an apocalyptic number.

5666667889450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5666667889450 is a deficient number, since it is larger than the sum of its proper divisors (4873334385020).

5666667889450 is a wasteful number, since it uses less digits than its factorization.

5666667889450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113333357801 (or 113333357796 counting only the distinct ones).

The product of its (nonzero) digits is 3135283200, while the sum is 76.

The spelling of 5666667889450 in words is "five trillion, six hundred sixty-six billion, six hundred sixty-seven million, eight hundred eighty-nine thousand, four hundred fifty".