6665101061 has 8 divisors (see below), whose sum is σ = 6735424344. Its totient is φ = 6595130880.

The previous prime is 6665100983. The next prime is 6665101111. The reversal of 6665101061 is 1601015666.

It can be written as a sum of positive squares in 4 ways, for example, as 92756161 + 6572344900 = 9631^2 + 81070^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6665101061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665101361) 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, 50240 + ... + 125913.

It is an arithmetic number, because the mean of its divisors is an integer number (841928043).

Almost surely, 2^6665101061 is an apocalyptic number.

It is an amenable number.

6665101061 is a deficient number, since it is larger than the sum of its proper divisors (70323283).

6665101061 is a wasteful number, since it uses less digits than its factorization.

6665101061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176551.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 6665101061 is about 81640.0701922775. The cubic root of 6665101061 is about 1881.9247170937.

The spelling of 6665101061 in words is "six billion, six hundred sixty-five million, one hundred one thousand, sixty-one".