66026734761 has 8 divisors (see below), whose sum is σ = 94807619200. Its totient is φ = 40631836752.

The previous prime is 66026734759. The next prime is 66026734769. The reversal of 66026734761 is 16743762066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66026734761 - 2¹ = 66026734759 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66026734761.

It is not an unprimeable number, because it can be changed into a prime (66026734769) 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, 846496561 + ... + 846496638.

It is an arithmetic number, because the mean of its divisors is an integer number (11850952400).

Almost surely, 2^66026734761 is an apocalyptic number.

It is an amenable number.

66026734761 is a deficient number, since it is larger than the sum of its proper divisors (28780884439).

66026734761 is a wasteful number, since it uses less digits than its factorization.

66026734761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692993215.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 66026734761 in words is "sixty-six billion, twenty-six million, seven hundred thirty-four thousand, seven hundred sixty-one".