533623166421 has 16 divisors (see below), whose sum is σ = 740799544128. Its totient is φ = 341382268800.

The previous prime is 533623166413. The next prime is 533623166437. The reversal of 533623166421 is 124661326335.

It is not a de Polignac number, because 533623166421 - 2³ = 533623166413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533623166411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35553151 + ... + 35568156.

It is an arithmetic number, because the mean of its divisors is an integer number (46299971508).

Almost surely, 2^533623166421 is an apocalyptic number.

It is an amenable number.

533623166421 is a deficient number, since it is larger than the sum of its proper divisors (207176377707).

533623166421 is a wasteful number, since it uses less digits than its factorization.

533623166421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71121412.

The product of its digits is 466560, while the sum is 42.

The spelling of 533623166421 in words is "five hundred thirty-three billion, six hundred twenty-three million, one hundred sixty-six thousand, four hundred twenty-one".