665514285548 has 12 divisors (see below), whose sum is σ = 1331028571152. Its totient is φ = 285220408080.

The previous prime is 665514285547. The next prime is 665514285671. The reversal of 665514285548 is 845582415566.

665514285548 is an admirable number.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (665514285547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11884183643 + ... + 11884183698.

It is an arithmetic number, because the mean of its divisors is an integer number (110919047596).

Almost surely, 2^665514285548 is an apocalyptic number.

It is an amenable number.

665514285548 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

665514285548 is a wasteful number, since it uses less digits than its factorization.

665514285548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23768367352 (or 23768367350 counting only the distinct ones).

The product of its digits is 46080000, while the sum is 59.

The spelling of 665514285548 in words is "six hundred sixty-five billion, five hundred fourteen million, two hundred eighty-five thousand, five hundred forty-eight".