1665714065016 has 64 divisors (see below), whose sum is σ = 4185756086400. Its totient is φ = 552380400000.

The previous prime is 1665714064943. The next prime is 1665714065039. The reversal of 1665714065016 is 6105604175661.

It is a happy number.

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, 5013666 + ... + 5335566.

It is an arithmetic number, because the mean of its divisors is an integer number (65402438850).

Almost surely, 2^{1665714065016} is an apocalyptic number.

It is an amenable number.

1665714065016 is an abundant number, since it is smaller than the sum of its proper divisors (2520042021384).

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

1665714065016 is a wasteful number, since it uses less digits than its factorization.

1665714065016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323020 (or 323016 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 1665714065016 in words is "one trillion, six hundred sixty-five billion, seven hundred fourteen million, sixty-five thousand, sixteen".