55065345642 has 40 divisors (see below), whose sum is σ = 124608855492. Its totient is φ = 18173376000.

The previous prime is 55065345641. The next prime is 55065345659. The reversal of 55065345642 is 24654356055.

55065345642 is a `hidden beast` number, since 5 + 50 + 6 + 5 + 34 + 564 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 48418041681 + 6647303961 = 220041^2 + 81531^2 .

It is not an unprimeable number, because it can be changed into a prime (55065345641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1666359 + ... + 1699082.

Almost surely, 2^55065345642 is an apocalyptic number.

55065345642 is an abundant number, since it is smaller than the sum of its proper divisors (69543509850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55065345642 is a wasteful number, since it uses less digits than its factorization.

55065345642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365556 (or 3365547 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 55065345642 in words is "fifty-five billion, sixty-five million, three hundred forty-five thousand, six hundred forty-two".