6366028567561 has 16 divisors (see below), whose sum is σ = 6988304937600. Its totient is φ = 5763550141440.

The previous prime is 6366028567553. The next prime is 6366028567609. The reversal of 6366028567561 is 1657658206636.

It is not a de Polignac number, because 6366028567561 - 2³ = 6366028567553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6366028567561.

It is not an unprimeable number, because it can be changed into a prime (6366028567531) 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, 17690011 + ... + 18046288.

It is an arithmetic number, because the mean of its divisors is an integer number (436769058600).

Almost surely, 2^{6366028567561} is an apocalyptic number.

It is an amenable number.

6366028567561 is a deficient number, since it is larger than the sum of its proper divisors (622276370039).

6366028567561 is a wasteful number, since it uses less digits than its factorization.

6366028567561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35736576.

The product of its (nonzero) digits is 65318400, while the sum is 61.

The spelling of 6366028567561 in words is "six trillion, three hundred sixty-six billion, twenty-eight million, five hundred sixty-seven thousand, five hundred sixty-one".