266231054651564 has 12 divisors (see below), whose sum is σ = 467102043189600. Its totient is φ = 132773328025968.

The previous prime is 266231054651543. The next prime is 266231054651587. The reversal of 266231054651564 is 465156450132662.

266231054651564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266231054651564² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85549823204 + ... + 85549826315.

It is an arithmetic number, because the mean of its divisors is an integer number (38925170265800).

Almost surely, 2^{266231054651564} is an apocalyptic number.

It is an amenable number.

266231054651564 is a deficient number, since it is larger than the sum of its proper divisors (200870988538036).

266231054651564 is a wasteful number, since it uses less digits than its factorization.

266231054651564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171099649912 (or 171099649910 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 56.

The spelling of 266231054651564 in words is "two hundred sixty-six trillion, two hundred thirty-one billion, fifty-four million, six hundred fifty-one thousand, five hundred sixty-four".