266264161466560 has 28 divisors (see below), whose sum is σ = 634041534493008. Its totient is φ = 106505664586496.

The previous prime is 266264161466519. The next prime is 266264161466561. The reversal of 266264161466560 is 65664161462662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (266264161466561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416037751972 + ... + 416037752611.

Almost surely, 2^{266264161466560} is an apocalyptic number.

266264161466560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266264161466560 is an abundant number, since it is smaller than the sum of its proper divisors (367777373026448).

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

266264161466560 is an equidigital number, since it uses as much as digits as its factorization.

266264161466560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832075504600 (or 832075504590 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 61.

The spelling of 266264161466560 in words is "two hundred sixty-six trillion, two hundred sixty-four billion, one hundred sixty-one million, four hundred sixty-six thousand, five hundred sixty".