266034474239072 has 768 divisors, whose sum is σ = 725922570240000. Its totient is φ = 92908257361920.

The previous prime is 266034474239069. The next prime is 266034474239129. The reversal of 266034474239072 is 270932474430662.

It is a happy number.

It is a super-2 number, since 2×266034474239072² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7660280204 + ... + 7660314932.

It is an arithmetic number, because the mean of its divisors is an integer number (945211680000).

Almost surely, 2^{266034474239072} is an apocalyptic number.

266034474239072 is a gapful number since it is divisible by the number (22) 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 266034474239072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362961285120000).

266034474239072 is an abundant number, since it is smaller than the sum of its proper divisors (459888096000928).

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

266034474239072 is a wasteful number, since it uses less digits than its factorization.

266034474239072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34947 (or 34939 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 59.

The spelling of 266034474239072 in words is "two hundred sixty-six trillion, thirty-four billion, four hundred seventy-four million, two hundred thirty-nine thousand, seventy-two".