65268221612 has 24 divisors (see below), whose sum is σ = 124737172560. Its totient is φ = 29635420160.

The previous prime is 65268221611. The next prime is 65268221647. The reversal of 65268221612 is 21612286256.

It is a self number, because there is not a number n which added to its sum of digits gives 65268221612.

It is not an unprimeable number, because it can be changed into a prime (65268221611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757493 + ... + 839244.

It is an arithmetic number, because the mean of its divisors is an integer number (5197382190).

Almost surely, 2^65268221612 is an apocalyptic number.

It is an amenable number.

65268221612 is a deficient number, since it is larger than the sum of its proper divisors (59468950948).

65268221612 is a wasteful number, since it uses less digits than its factorization.

65268221612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597681 (or 1597679 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The spelling of 65268221612 in words is "sixty-five billion, two hundred sixty-eight million, two hundred twenty-one thousand, six hundred twelve".