2065245455640 has 64 divisors (see below), whose sum is σ = 6465116217600. Its totient is φ = 526787245952.

The previous prime is 2065245455593. The next prime is 2065245455657. The reversal of 2065245455640 is 465545425602.

It is a self number, because there is not a number n which added to its sum of digits gives 2065245455640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374135910 + ... + 374141429.

It is an arithmetic number, because the mean of its divisors is an integer number (101017440900).

Almost surely, 2^{2065245455640} is an apocalyptic number.

2065245455640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065245455640 is an abundant number, since it is smaller than the sum of its proper divisors (4399870761960).

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

2065245455640 is a wasteful number, since it uses less digits than its factorization.

2065245455640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748277376 (or 748277372 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 2065245455640 in words is "two trillion, sixty-five billion, two hundred forty-five million, four hundred fifty-five thousand, six hundred forty".