432212121665 has 8 divisors (see below), whose sum is σ = 531304657128. Its totient is φ = 337336289920.

The previous prime is 432212121659. The next prime is 432212121697. The reversal of 432212121665 is 566121212234.

It can be written as a sum of positive squares in 4 ways, for example, as 18249848464 + 413962273201 = 135092^2 + 643399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 432212121665 - 2⁸ = 432212121409 is a prime.

It is a super-2 number, since 2×432212121665² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054175702 + ... + 1054176111.

It is an arithmetic number, because the mean of its divisors is an integer number (66413082141).

Almost surely, 2^432212121665 is an apocalyptic number.

It is an amenable number.

432212121665 is a deficient number, since it is larger than the sum of its proper divisors (99092535463).

432212121665 is a wasteful number, since it uses less digits than its factorization.

432212121665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108351859.

The product of its digits is 34560, while the sum is 35.

Adding to 432212121665 its reverse (566121212234), we get a palindrome (998333333899).

The spelling of 432212121665 in words is "four hundred thirty-two billion, two hundred twelve million, one hundred twenty-one thousand, six hundred sixty-five".