66020834741 has 16 divisors (see below), whose sum is σ = 67580697600. Its totient is φ = 64476394608.

The previous prime is 66020834713. The next prime is 66020834767. The reversal of 66020834741 is 14743802066.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66020834741 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 (66020834141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13800836 + ... + 13805618.

It is an arithmetic number, because the mean of its divisors is an integer number (4223793600).

Almost surely, 2^66020834741 is an apocalyptic number.

It is an amenable number.

66020834741 is a deficient number, since it is larger than the sum of its proper divisors (1559862859).

66020834741 is a wasteful number, since it uses less digits than its factorization.

66020834741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 66020834741 in words is "sixty-six billion, twenty million, eight hundred thirty-four thousand, seven hundred forty-one".