66446235644754 has 16 divisors (see below), whose sum is σ = 151877110045248. Its totient is φ = 18984638755632.

The previous prime is 66446235644713. The next prime is 66446235644759. The reversal of 66446235644754 is 45744653264466.

It is not an unprimeable number, because it can be changed into a prime (66446235644759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791026614777 + ... + 791026614860.

It is an arithmetic number, because the mean of its divisors is an integer number (9492319377828).

Almost surely, 2^{66446235644754} is an apocalyptic number.

66446235644754 is an abundant number, since it is smaller than the sum of its proper divisors (85430874400494).

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

66446235644754 is a wasteful number, since it uses less digits than its factorization.

66446235644754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582053229649.

The product of its digits is 1393459200, while the sum is 66.

The spelling of 66446235644754 in words is "sixty-six trillion, four hundred forty-six billion, two hundred thirty-five million, six hundred forty-four thousand, seven hundred fifty-four".