66046204441 has 4 divisors (see below), whose sum is σ = 75481376512. Its totient is φ = 56611032372.

The previous prime is 66046204439. The next prime is 66046204529. The reversal of 66046204441 is 14440264066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66046204441 - 2¹ = 66046204439 is a prime.

It is a super-2 number, since 2×66046204441² (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 66046204441.

It is not an unprimeable number, because it can be changed into a prime (66046205441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4717586025 + ... + 4717586038.

It is an arithmetic number, because the mean of its divisors is an integer number (18870344128).

Almost surely, 2^66046204441 is an apocalyptic number.

It is an amenable number.

66046204441 is a deficient number, since it is larger than the sum of its proper divisors (9435172071).

66046204441 is an equidigital number, since it uses as much as digits as its factorization.

66046204441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9435172070.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 66046204441 in words is "sixty-six billion, forty-six million, two hundred four thousand, four hundred forty-one".