66743433741 has 4 divisors (see below), whose sum is σ = 88991244992. Its totient is φ = 44495622492.

The previous prime is 66743433739. The next prime is 66743433767. The reversal of 66743433741 is 14733434766.

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 not a de Polignac number, because 66743433741 - 2¹ = 66743433739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66743433781) 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, 11123905621 + ... + 11123905626.

It is an arithmetic number, because the mean of its divisors is an integer number (22247811248).

Almost surely, 2^66743433741 is an apocalyptic number.

It is an amenable number.

66743433741 is a deficient number, since it is larger than the sum of its proper divisors (22247811251).

66743433741 is a wasteful number, since it uses less digits than its factorization.

66743433741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22247811250.

The product of its digits is 3048192, while the sum is 48.

The spelling of 66743433741 in words is "sixty-six billion, seven hundred forty-three million, four hundred thirty-three thousand, seven hundred forty-one".