6765661213 has 8 divisors (see below), whose sum is σ = 6873310080. Its totient is φ = 6658355760.

The previous prime is 6765661211. The next prime is 6765661223. The reversal of 6765661213 is 3121665676.

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

It is a cyclic number.

It is not a de Polignac number, because 6765661213 - 2¹ = 6765661211 is a prime.

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 6765661213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6765661211) 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, 45993 + ... + 125086.

It is an arithmetic number, because the mean of its divisors is an integer number (859163760).

Almost surely, 2^6765661213 is an apocalyptic number.

It is an amenable number.

6765661213 is a deficient number, since it is larger than the sum of its proper divisors (107648867).

6765661213 is a wasteful number, since it uses less digits than its factorization.

6765661213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171707.

The product of its digits is 272160, while the sum is 43.

The square root of 6765661213 is about 82253.6395121821. The cubic root of 6765661213 is about 1891.3420675130.

The spelling of 6765661213 in words is "six billion, seven hundred sixty-five million, six hundred sixty-one thousand, two hundred thirteen".