65642668602 has 48 divisors (see below), whose sum is σ = 152753211072. Its totient is φ = 18750930240.

The previous prime is 65642668591. The next prime is 65642668603. The reversal of 65642668602 is 20686624656.

It is a happy number.

65642668602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (65642668603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1471843 + ... + 1515785.

It is an arithmetic number, because the mean of its divisors is an integer number (3182358564).

Almost surely, 2^65642668602 is an apocalyptic number.

65642668602 is an abundant number, since it is smaller than the sum of its proper divisors (87110542470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65642668602 is a wasteful number, since it uses less digits than its factorization.

65642668602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49043 (or 49036 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 65642668602 in words is "sixty-five billion, six hundred forty-two million, six hundred sixty-eight thousand, six hundred two".