56534466009999 has 16 divisors (see below), whose sum is σ = 76413294799712. Its totient is φ = 37172659719168.

The previous prime is 56534466009979. The next prime is 56534466010003. The reversal of 56534466009999 is 99990066443565.

It is not a de Polignac number, because 56534466009999 - 2⁹ = 56534466009487 is a prime.

It is a super-2 number, since 2×56534466009999² (a number of 28 digits) contains 22 as substring.

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 56534466009999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56534466009949) 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, 9612549 + ... + 14334225.

It is an arithmetic number, because the mean of its divisors is an integer number (4775830924982).

Almost surely, 2^{56534466009999} is an apocalyptic number.

56534466009999 is a deficient number, since it is larger than the sum of its proper divisors (19878828789713).

56534466009999 is a wasteful number, since it uses less digits than its factorization.

56534466009999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776426.

The product of its (nonzero) digits is 1700611200, while the sum is 75.

The spelling of 56534466009999 in words is "fifty-six trillion, five hundred thirty-four billion, four hundred sixty-six million, nine thousand, nine hundred ninety-nine".