660654523324413 has 12 divisors (see below), whose sum is σ = 1010412800378748. Its totient is φ = 414528328360320.

The previous prime is 660654523324363. The next prime is 660654523324441. The reversal of 660654523324413 is 314423325456066.

660654523324413 is a `hidden beast` number, since 6 + 6 + 0 + 6 + 54 + 523 + 3 + 24 + 41 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 234350876441529 + 426303646882884 = 15308523^2 + 20647122^2 .

It is not a de Polignac number, because 660654523324413 - 2²⁶ = 660654456215549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 660654523324413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660654513324413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2159001710058 + ... + 2159001710363.

It is an arithmetic number, because the mean of its divisors is an integer number (84201066698229).

Almost surely, 2^{660654523324413} is an apocalyptic number.

It is an amenable number.

660654523324413 is a deficient number, since it is larger than the sum of its proper divisors (349758277054335).

660654523324413 is a wasteful number, since it uses less digits than its factorization.

660654523324413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318003420444 (or 4318003420441 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 54.

The spelling of 660654523324413 in words is "six hundred sixty trillion, six hundred fifty-four billion, five hundred twenty-three million, three hundred twenty-four thousand, four hundred thirteen".