65366042112665 has 32 divisors (see below), whose sum is σ = 97233159953664. Its totient is φ = 41156893071360.

The previous prime is 65366042112661. The next prime is 65366042112677. The reversal of 65366042112665 is 56621124066356.

It is not a de Polignac number, because 65366042112665 - 2² = 65366042112661 is a prime.

It is a super-2 number, since 2×65366042112665² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65366042112661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1339718219 + ... + 1339767008.

It is an arithmetic number, because the mean of its divisors is an integer number (3038536248552).

Almost surely, 2^{65366042112665} is an apocalyptic number.

It is an amenable number.

65366042112665 is a deficient number, since it is larger than the sum of its proper divisors (31867117840999).

65366042112665 is a wasteful number, since it uses less digits than its factorization.

65366042112665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679485297.

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 65366042112665 in words is "sixty-five trillion, three hundred sixty-six billion, forty-two million, one hundred twelve thousand, six hundred sixty-five".