65772196078433 has 8 divisors (see below), whose sum is σ = 70832879335848. Its totient is φ = 60711696186624.

The previous prime is 65772196078429. The next prime is 65772196078471. The reversal of 65772196078433 is 33487069127756.

It can be written as a sum of positive squares in 4 ways, for example, as 10206159205264 + 55566036873169 = 3194708^2 + 7454263^2 .

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 65772196078433 - 2² = 65772196078429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65772196072433) 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, 45095966 + ... + 46531607.

It is an arithmetic number, because the mean of its divisors is an integer number (8854109916981).

It is a 1-persistent number, because it is pandigital, but 2⋅65772196078433 = 131544392156866 is not.

Almost surely, 2^{65772196078433} is an apocalyptic number.

It is an amenable number.

65772196078433 is a deficient number, since it is larger than the sum of its proper divisors (5060683257415).

65772196078433 is a wasteful number, since it uses less digits than its factorization.

65772196078433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91682803.

The product of its (nonzero) digits is 320060160, while the sum is 68.

The spelling of 65772196078433 in words is "sixty-five trillion, seven hundred seventy-two billion, one hundred ninety-six million, seventy-eight thousand, four hundred thirty-three".