6662545775065 has 24 divisors (see below), whose sum is σ = 8202620433024. Its totient is φ = 5195081136000.

The previous prime is 6662545775033. The next prime is 6662545775113. The reversal of 6662545775065 is 5605775452666.

It is a happy number.

It is not a de Polignac number, because 6662545775065 - 2⁵ = 6662545775033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6662545774988 and 6662545775006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8456544 + ... + 9210766.

It is an arithmetic number, because the mean of its divisors is an integer number (341775851376).

Almost surely, 2^{6662545775065} is an apocalyptic number.

It is an amenable number.

6662545775065 is a deficient number, since it is larger than the sum of its proper divisors (1540074657959).

6662545775065 is a wasteful number, since it uses less digits than its factorization.

6662545775065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755361 (or 755320 counting only the distinct ones).

The product of its (nonzero) digits is 317520000, while the sum is 64.

The spelling of 6662545775065 in words is "six trillion, six hundred sixty-two billion, five hundred forty-five million, seven hundred seventy-five thousand, sixty-five".