65997345622 has 24 divisors (see below), whose sum is σ = 107215826256. Its totient is φ = 30454927776.

The previous prime is 65997345619. The next prime is 65997345629. The reversal of 65997345622 is 22654379956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65997345629) 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, 2395228 + ... + 2422624.

It is an arithmetic number, because the mean of its divisors is an integer number (4467326094).

Almost surely, 2^65997345622 is an apocalyptic number.

65997345622 is a deficient number, since it is larger than the sum of its proper divisors (41218480634).

65997345622 is a wasteful number, since it uses less digits than its factorization.

65997345622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34552 (or 34539 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 58.

The spelling of 65997345622 in words is "sixty-five billion, nine hundred ninety-seven million, three hundred forty-five thousand, six hundred twenty-two".