65772196078426 has 32 divisors (see below), whose sum is σ = 103006739404800. Its totient is φ = 31438258460400.

The previous prime is 65772196078331. The next prime is 65772196078427. The reversal of 65772196078426 is 62487069127756.

It is not an unprimeable number, because it can be changed into a prime (65772196078427) 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, 689829465 + ... + 689924803.

It is an arithmetic number, because the mean of its divisors is an integer number (3218960606400).

Almost surely, 2^{65772196078426} is an apocalyptic number.

65772196078426 is a deficient number, since it is larger than the sum of its proper divisors (37234543326374).

65772196078426 is a wasteful number, since it uses less digits than its factorization.

65772196078426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103794.

The product of its (nonzero) digits is 426746880, while the sum is 70.

The spelling of 65772196078426 in words is "sixty-five trillion, seven hundred seventy-two billion, one hundred ninety-six million, seventy-eight thousand, four hundred twenty-six".