633253883021 has 16 divisors (see below), whose sum is σ = 671166466560. Its totient is φ = 595415251200.

The previous prime is 633253882991. The next prime is 633253883033. The reversal of 633253883021 is 120388352336.

It is a cyclic number.

It is not a de Polignac number, because 633253883021 - 2⁶ = 633253882957 is a prime.

It is a super-2 number, since 2×633253883021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633253823021) 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, 102948296 + ... + 102954446.

It is an arithmetic number, because the mean of its divisors is an integer number (41947904160).

Almost surely, 2^633253883021 is an apocalyptic number.

It is an amenable number.

633253883021 is a deficient number, since it is larger than the sum of its proper divisors (37912583539).

633253883021 is a wasteful number, since it uses less digits than its factorization.

633253883021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11164.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 633253883021 in words is "six hundred thirty-three billion, two hundred fifty-three million, eight hundred eighty-three thousand, twenty-one".