266621100226100 has 72 divisors (see below), whose sum is σ = 578786562976608. Its totient is φ = 106608118691200.

The previous prime is 266621100226087. The next prime is 266621100226123. The reversal of 266621100226100 is 1622001126662.

It is a super-2 number, since 2×266621100226100² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4720851062 + ... + 4720907538.

It is an arithmetic number, because the mean of its divisors is an integer number (8038702263564).

Almost surely, 2^{266621100226100} is an apocalyptic number.

266621100226100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266621100226100 is an abundant number, since it is smaller than the sum of its proper divisors (312165462750508).

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

266621100226100 is a wasteful number, since it uses less digits than its factorization.

266621100226100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73505 (or 73498 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 266621100226100 in words is "two hundred sixty-six trillion, six hundred twenty-one billion, one hundred million, two hundred twenty-six thousand, one hundred".