421661032334 has 4 divisors (see below), whose sum is σ = 632491548504. Its totient is φ = 210830516166.

The previous prime is 421661032327. The next prime is 421661032367. The reversal of 421661032334 is 433230166124.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 421661032294 and 421661032303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105415258082 + ... + 105415258085.

It is an arithmetic number, because the mean of its divisors is an integer number (158122887126).

Almost surely, 2^421661032334 is an apocalyptic number.

421661032334 is a deficient number, since it is larger than the sum of its proper divisors (210830516170).

421661032334 is a wasteful number, since it uses less digits than its factorization.

421661032334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210830516169.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 421661032334 its reverse (433230166124), we get a palindrome (854891198458).

The spelling of 421661032334 in words is "four hundred twenty-one billion, six hundred sixty-one million, thirty-two thousand, three hundred thirty-four".