662653056340 has 36 divisors (see below), whose sum is σ = 1529578506708. Its totient is φ = 240964746880.

The previous prime is 662653056323. The next prime is 662653056341. The reversal of 662653056340 is 43650356266.

It can be written as a sum of positive squares in 2 ways, for example, as 106632290116 + 556020766224 = 326546^2 + 745668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662653056341) 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, 136909369 + ... + 136914208.

It is an arithmetic number, because the mean of its divisors is an integer number (42488291853).

Almost surely, 2^662653056340 is an apocalyptic number.

It is an amenable number.

662653056340 is an abundant number, since it is smaller than the sum of its proper divisors (866925450368).

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

662653056340 is a wasteful number, since it uses less digits than its factorization.

662653056340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273823608 (or 273823595 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 662653056340 in words is "six hundred sixty-two billion, six hundred fifty-three million, fifty-six thousand, three hundred forty".