664254520350 has 48 divisors (see below), whose sum is σ = 1647801080112. Its totient is φ = 177086165760.

The previous prime is 664254520277. The next prime is 664254520367. The reversal of 664254520350 is 53025452466.

664254520350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 51877 + ... + 1153776.

It is an arithmetic number, because the mean of its divisors is an integer number (34329189169).

Almost surely, 2^664254520350 is an apocalyptic number.

664254520350 is an abundant number, since it is smaller than the sum of its proper divisors (983546559762).

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

664254520350 is a wasteful number, since it uses less digits than its factorization.

664254520350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209341 (or 1209336 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 664254520350 in words is "six hundred sixty-four billion, two hundred fifty-four million, five hundred twenty thousand, three hundred fifty".