6662315261 has 8 divisors (see below), whose sum is σ = 7876629120. Its totient is φ = 5513640048.

The previous prime is 6662315251. The next prime is 6662315273. The reversal of 6662315261 is 1625132666.

It is a happy number.

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

It is not a de Polignac number, because 6662315261 - 2³⁰ = 5588573437 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 (6662315221) 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, 16409441 + ... + 16409846.

It is an arithmetic number, because the mean of its divisors is an integer number (984578640).

Almost surely, 2^6662315261 is an apocalyptic number.

It is an amenable number.

6662315261 is a deficient number, since it is larger than the sum of its proper divisors (1214313859).

6662315261 is a wasteful number, since it uses less digits than its factorization.

6662315261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32819323.

The product of its digits is 77760, while the sum is 38.

The square root of 6662315261 is about 81623.0069343197. The cubic root of 6662315261 is about 1881.6624856876.

The spelling of 6662315261 in words is "six billion, six hundred sixty-two million, three hundred fifteen thousand, two hundred sixty-one".