65612663403 has 12 divisors (see below), whose sum is σ = 101766580200. Its totient is φ = 37492950432.

The previous prime is 65612663401. The next prime is 65612663423. The reversal of 65612663403 is 30436621656.

It is a happy number.

It is not a de Polignac number, because 65612663403 - 2¹ = 65612663401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65612663401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223172178 + ... + 223172471.

It is an arithmetic number, because the mean of its divisors is an integer number (8480548350).

Almost surely, 2^65612663403 is an apocalyptic number.

65612663403 is a deficient number, since it is larger than the sum of its proper divisors (36153916797).

65612663403 is a wasteful number, since it uses less digits than its factorization.

65612663403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446344666 (or 446344659 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 65612663403 in words is "sixty-five billion, six hundred twelve million, six hundred sixty-three thousand, four hundred three".