63423156655266 has 64 divisors (see below), whose sum is σ = 134904044695680. Its totient is φ = 19809325992960.

The previous prime is 63423156655139. The next prime is 63423156655273. The reversal of 63423156655266 is 66255665132436.

It is a Curzon number.

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, 20059776 + ... + 23005236.

It is an arithmetic number, because the mean of its divisors is an integer number (2107875698370).

Almost surely, 2^{63423156655266} is an apocalyptic number.

63423156655266 is an abundant number, since it is smaller than the sum of its proper divisors (71480888040414).

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

63423156655266 is a wasteful number, since it uses less digits than its factorization.

63423156655266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946419.

The product of its digits is 139968000, while the sum is 60.

The spelling of 63423156655266 in words is "sixty-three trillion, four hundred twenty-three billion, one hundred fifty-six million, six hundred fifty-five thousand, two hundred sixty-six".