65040512199 has 16 divisors (see below), whose sum is σ = 93530311392. Its totient is φ = 39965442048.

The previous prime is 65040512189. The next prime is 65040512213. The reversal of 65040512199 is 99121504056.

It is not a de Polignac number, because 65040512199 - 2²¹ = 65038415047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65040512199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65040512189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212762 + ... + 1265255.

It is an arithmetic number, because the mean of its divisors is an integer number (5845644462).

Almost surely, 2^65040512199 is an apocalyptic number.

65040512199 is a deficient number, since it is larger than the sum of its proper divisors (28489799193).

65040512199 is a wasteful number, since it uses less digits than its factorization.

65040512199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478706.

The product of its (nonzero) digits is 97200, while the sum is 42.

The spelling of 65040512199 in words is "sixty-five billion, forty million, five hundred twelve thousand, one hundred ninety-nine".