266006514221420 has 96 divisors (see below), whose sum is σ = 648891329546880. Its totient is φ = 89705750999040.

The previous prime is 266006514221419. The next prime is 266006514221431. The reversal of 266006514221420 is 24122415600662.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673856342 + ... + 674250978.

It is an arithmetic number, because the mean of its divisors is an integer number (6759284682780).

Almost surely, 2^{266006514221420} is an apocalyptic number.

266006514221420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266006514221420 is an abundant number, since it is smaller than the sum of its proper divisors (382884815325460).

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

266006514221420 is a wasteful number, since it uses less digits than its factorization.

266006514221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473643 (or 473641 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 266006514221420 in words is "two hundred sixty-six trillion, six billion, five hundred fourteen million, two hundred twenty-one thousand, four hundred twenty".