66055244541 has 64 divisors (see below), whose sum is σ = 104344052736. Its totient is φ = 36643622400.

The previous prime is 66055244531. The next prime is 66055244543. The reversal of 66055244541 is 14544255066.

It is not a de Polignac number, because 66055244541 - 2¹¹ = 66055242493 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 66055244493 and 66055244502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66055244543) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27788145 + ... + 27790521.

It is an arithmetic number, because the mean of its divisors is an integer number (1630375824).

Almost surely, 2^66055244541 is an apocalyptic number.

It is an amenable number.

66055244541 is a deficient number, since it is larger than the sum of its proper divisors (38288808195).

66055244541 is a wasteful number, since it uses less digits than its factorization.

66055244541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 66055244541 in words is "sixty-six billion, fifty-five million, two hundred forty-four thousand, five hundred forty-one".