254926720664 has 96 divisors (see below), whose sum is σ = 613390611600. Its totient is φ = 98205972480.

The previous prime is 254926720663. The next prime is 254926720723. The reversal of 254926720664 is 466027629452.

254926720664 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 not an unprimeable number, because it can be changed into a prime (254926720663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51632 + ... + 715904.

Almost surely, 2^254926720664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 254926720664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306695305800).

254926720664 is an abundant number, since it is smaller than the sum of its proper divisors (358463890936).

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

254926720664 is a wasteful number, since it uses less digits than its factorization.

254926720664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664393 (or 664382 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 254926720664 in words is "two hundred fifty-four billion, nine hundred twenty-six million, seven hundred twenty thousand, six hundred sixty-four".