621266366460223 has 24 divisors (see below), whose sum is σ = 683795414366064. Its totient is φ = 564030399018240.

The previous prime is 621266366460197. The next prime is 621266366460239. The reversal of 621266366460223 is 322064663662126.

621266366460223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621266366460223 - 2¹³ = 621266366452031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621266366460253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514059165 + ... + 515266297.

It is an arithmetic number, because the mean of its divisors is an integer number (28491475598586).

Almost surely, 2^{621266366460223} is an apocalyptic number.

621266366460223 is a deficient number, since it is larger than the sum of its proper divisors (62529047905841).

621266366460223 is a wasteful number, since it uses less digits than its factorization.

621266366460223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212855 (or 1212844 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 55.

The spelling of 621266366460223 in words is "six hundred twenty-one trillion, two hundred sixty-six billion, three hundred sixty-six million, four hundred sixty thousand, two hundred twenty-three".