266230994400 has 1296 divisors, whose sum is σ = 1192933647360. Its totient is φ = 57610828800.

The previous prime is 266230994399. The next prime is 266230994413. The reversal of 266230994400 is 4499032662.

266230994400 is a `hidden beast` number, since 2 + 6 + 6 + 230 + 9 + 9 + 4 + 400 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 180985665 + ... + 180987135.

Almost surely, 2^266230994400 is an apocalyptic number.

266230994400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266230994400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596466823680).

266230994400 is an abundant number, since it is smaller than the sum of its proper divisors (926702652960).

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

266230994400 is a wasteful number, since it uses less digits than its factorization.

266230994400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 266230994400 in words is "two hundred sixty-six billion, two hundred thirty million, nine hundred ninety-four thousand, four hundred".