264774220992 has 168 divisors, whose sum is σ = 805055627376. Its totient is φ = 82912886784.

The previous prime is 264774220957. The next prime is 264774221017. The reversal of 264774220992 is 299022477462.

264774220992 is a `hidden beast` number, since 2 + 64 + 77 + 422 + 0 + 9 + 92 = 666.

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, 5331508 + ... + 5380940.

It is an arithmetic number, because the mean of its divisors is an integer number (4791997782).

Almost surely, 2^264774220992 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 264774220992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402527813688).

264774220992 is an abundant number, since it is smaller than the sum of its proper divisors (540281406384).

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

264774220992 is a wasteful number, since it uses less digits than its factorization.

264774220992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50015 (or 50002 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 264774220992 in words is "two hundred sixty-four billion, seven hundred seventy-four million, two hundred twenty thousand, nine hundred ninety-two".