1322065305640 has 128 divisors (see below), whose sum is σ = 3036216648960. Its totient is φ = 518022006784.

The previous prime is 1322065305607. The next prime is 1322065305661. The reversal of 1322065305640 is 465035602231.

It is a self number, because there is not a number n which added to its sum of digits gives 1322065305640.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154208394 + ... + 154216966.

It is an arithmetic number, because the mean of its divisors is an integer number (23720442570).

Almost surely, 2^{1322065305640} is an apocalyptic number.

1322065305640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322065305640 is an abundant number, since it is smaller than the sum of its proper divisors (1714151343320).

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

1322065305640 is a wasteful number, since it uses less digits than its factorization.

1322065305640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091 (or 9087 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 1322065305640 in words is "one trillion, three hundred twenty-two billion, sixty-five million, three hundred five thousand, six hundred forty".