65665152705 has 8 divisors (see below), whose sum is σ = 105064244352. Its totient is φ = 35021414768.

The previous prime is 65665152703. The next prime is 65665152803. The reversal of 65665152705 is 50725156656.

It is a happy number.

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 65665152705 - 2¹ = 65665152703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65665152703) 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, 2188838409 + ... + 2188838438.

It is an arithmetic number, because the mean of its divisors is an integer number (13133030544).

Almost surely, 2^65665152705 is an apocalyptic number.

It is an amenable number.

65665152705 is a deficient number, since it is larger than the sum of its proper divisors (39399091647).

65665152705 is a wasteful number, since it uses less digits than its factorization.

65665152705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377676855.

The product of its (nonzero) digits is 1890000, while the sum is 48.

The spelling of 65665152705 in words is "sixty-five billion, six hundred sixty-five million, one hundred fifty-two thousand, seven hundred five".