632121006601 has 4 divisors (see below), whose sum is σ = 722424007552. Its totient is φ = 541818005652.

The previous prime is 632121006589. The next prime is 632121006619. The reversal of 632121006601 is 106600121236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 632121006601 - 2¹⁵ = 632120973833 is a prime.

It is a super-2 number, since 2×632121006601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 632121006601.

It is not an unprimeable number, because it can be changed into a prime (632121006301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45151500465 + ... + 45151500478.

It is an arithmetic number, because the mean of its divisors is an integer number (180606001888).

Almost surely, 2^632121006601 is an apocalyptic number.

It is an amenable number.

632121006601 is a deficient number, since it is larger than the sum of its proper divisors (90303000951).

632121006601 is an equidigital number, since it uses as much as digits as its factorization.

632121006601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90303000950.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 632121006601 its reverse (106600121236), we get a palindrome (738721127837).

The spelling of 632121006601 in words is "six hundred thirty-two billion, one hundred twenty-one million, six thousand, six hundred one".