621266366460222 has 96 divisors (see below), whose sum is σ = 1538986226319360. Its totient is φ = 177434029301760.

The previous prime is 621266366460197. The next prime is 621266366460239. The reversal of 621266366460222 is 222064663662126.

It is a happy number.

621266366460222 is a `hidden beast` number, since 6 + 2 + 1 + 2 + 6 + 6 + 3 + 6 + 6 + 4 + 602 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4550966947 + ... + 4551103457.

It is an arithmetic number, because the mean of its divisors is an integer number (16031106524160).

Almost surely, 2^{621266366460222} is an apocalyptic number.

621266366460222 is an abundant number, since it is smaller than the sum of its proper divisors (917719859859138).

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

621266366460222 is a wasteful number, since it uses less digits than its factorization.

621266366460222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150638 (or 150635 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 54.

The spelling of 621266366460222 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-two".