65368745643 has 32 divisors (see below), whose sum is σ = 92165299200. Its totient is φ = 41097079296.

The previous prime is 65368745639. The next prime is 65368745647. The reversal of 65368745643 is 34654786356.

It is an interprime number because it is at equal distance from previous prime (65368745639) and next prime (65368745647).

It is not a de Polignac number, because 65368745643 - 2² = 65368745639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (65368745647) 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, 13808905 + ... + 13813637.

It is an arithmetic number, because the mean of its divisors is an integer number (2880165600).

Almost surely, 2^65368745643 is an apocalyptic number.

65368745643 is a deficient number, since it is larger than the sum of its proper divisors (26796553557).

65368745643 is a wasteful number, since it uses less digits than its factorization.

65368745643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811.

The product of its digits is 43545600, while the sum is 57.

The spelling of 65368745643 in words is "sixty-five billion, three hundred sixty-eight million, seven hundred forty-five thousand, six hundred forty-three".