66736676741 has 8 divisors (see below), whose sum is σ = 77520824064. Its totient is φ = 56265113520.

The previous prime is 66736676689. The next prime is 66736676753. The reversal of 66736676741 is 14767663766.

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

It is not a de Polignac number, because 66736676741 - 2¹⁴ = 66736660357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66736676761) 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, 78145565 + ... + 78146418.

It is an arithmetic number, because the mean of its divisors is an integer number (9690103008).

Almost surely, 2^66736676741 is an apocalyptic number.

66736676741 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

66736676741 is a deficient number, since it is larger than the sum of its proper divisors (10784147323).

66736676741 is a wasteful number, since it uses less digits than its factorization.

66736676741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156292051.

The product of its digits is 32006016, while the sum is 59.

The spelling of 66736676741 in words is "sixty-six billion, seven hundred thirty-six million, six hundred seventy-six thousand, seven hundred forty-one".