266611485504 has 112 divisors (see below), whose sum is σ = 868196432768. Its totient is φ = 70315112448.

The previous prime is 266611485443. The next prime is 266611485509. The reversal of 266611485504 is 405584116662.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266611485509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7612207 + ... + 7647150.

It is an arithmetic number, because the mean of its divisors is an integer number (7751753864).

Almost surely, 2^266611485504 is an apocalyptic number.

266611485504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266611485504 is an abundant number, since it is smaller than the sum of its proper divisors (601584947264).

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

266611485504 is a wasteful number, since it uses less digits than its factorization.

266611485504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15259392 (or 15259382 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 266611485504 in words is "two hundred sixty-six billion, six hundred eleven million, four hundred eighty-five thousand, five hundred four".