55064760681 has 32 divisors (see below), whose sum is σ = 89182013440. Its totient is φ = 29520059904.

The previous prime is 55064760661. The next prime is 55064760721. The reversal of 55064760681 is 18606746055.

It is not a de Polignac number, because 55064760681 - 2⁵ = 55064760649 is a prime.

It is a super-2 number, since 2×55064760681² (a number of 22 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 55064760681.

It is not an unprimeable number, because it can be changed into a prime (55064760661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628840 + ... + 711033.

It is an arithmetic number, because the mean of its divisors is an integer number (2786937920).

Almost surely, 2^55064760681 is an apocalyptic number.

It is an amenable number.

55064760681 is a deficient number, since it is larger than the sum of its proper divisors (34117252759).

55064760681 is a wasteful number, since it uses less digits than its factorization.

55064760681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340005.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 55064760681 in words is "fifty-five billion, sixty-four million, seven hundred sixty thousand, six hundred eighty-one".