65223693005 has 4 divisors (see below), whose sum is σ = 78268431612. Its totient is φ = 52178954400.

The previous prime is 65223692977. The next prime is 65223693013. The reversal of 65223693005 is 50039632256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38423056324 + 26800636681 = 196018^2 + 163709^2 .

It is not a de Polignac number, because 65223693005 - 2³⁰ = 64149951181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6522369296 + ... + 6522369305.

It is an arithmetic number, because the mean of its divisors is an integer number (19567107903).

Almost surely, 2^65223693005 is an apocalyptic number.

It is an amenable number.

65223693005 is a deficient number, since it is larger than the sum of its proper divisors (13044738607).

65223693005 is a wasteful number, since it uses less digits than its factorization.

65223693005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13044738606.

The product of its (nonzero) digits is 291600, while the sum is 41.

The spelling of 65223693005 in words is "sixty-five billion, two hundred twenty-three million, six hundred ninety-three thousand, five".