66025642560045 has 32 divisors (see below), whose sum is σ = 120737562163200. Its totient is φ = 30181911228480.

The previous prime is 66025642559999. The next prime is 66025642560047. The reversal of 66025642560045 is 54006524652066.

It is not a de Polignac number, because 66025642560045 - 2¹⁷ = 66025642428973 is a prime.

It is a super-2 number, since 2×66025642560045² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66025642560045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66025642560047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10341945 + ... + 15459854.

It is an arithmetic number, because the mean of its divisors is an integer number (3773048817600).

Almost surely, 2^{66025642560045} is an apocalyptic number.

It is an amenable number.

66025642560045 is a deficient number, since it is larger than the sum of its proper divisors (54711919603155).

66025642560045 is a wasteful number, since it uses less digits than its factorization.

66025642560045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25826185.

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 66025642560045 in words is "sixty-six trillion, twenty-five billion, six hundred forty-two million, five hundred sixty thousand, forty-five".