65694579441 has 4 divisors (see below), whose sum is σ = 87592772592. Its totient is φ = 43796386292.

The previous prime is 65694579421. The next prime is 65694579469. The reversal of 65694579441 is 14497549656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65694579441 - 2¹⁴ = 65694563057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65694579421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10949096571 + ... + 10949096576.

It is an arithmetic number, because the mean of its divisors is an integer number (21898193148).

Almost surely, 2^65694579441 is an apocalyptic number.

It is an amenable number.

65694579441 is a deficient number, since it is larger than the sum of its proper divisors (21898193151).

65694579441 is a wasteful number, since it uses less digits than its factorization.

65694579441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21898193150.

The product of its digits is 32659200, while the sum is 60.

The spelling of 65694579441 in words is "sixty-five billion, six hundred ninety-four million, five hundred seventy-nine thousand, four hundred forty-one".