21332007671 has 8 divisors (see below), whose sum is σ = 22980426000. Its totient is φ = 19684660032.

The previous prime is 21332007661. The next prime is 21332007689. The reversal of 21332007671 is 17670023312.

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

It is a cyclic number.

It is not a de Polignac number, because 21332007671 - 2⁶ = 21332007607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332007611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226046 + ... + 306203.

It is an arithmetic number, because the mean of its divisors is an integer number (2872553250).

Almost surely, 2^21332007671 is an apocalyptic number.

21332007671 is a deficient number, since it is larger than the sum of its proper divisors (1648418329).

21332007671 is a wasteful number, since it uses less digits than its factorization.

21332007671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535345.

The product of its (nonzero) digits is 10584, while the sum is 32.

The spelling of 21332007671 in words is "twenty-one billion, three hundred thirty-two million, seven thousand, six hundred seventy-one".