21336076324 has 6 divisors (see below), whose sum is σ = 37338133574. Its totient is φ = 10668038160.

The previous prime is 21336076309. The next prime is 21336076357. The reversal of 21336076324 is 42367063312.

It can be written as a sum of positive squares in only one way, i.e., 20957773824 + 378302500 = 144768^2 + 19450^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2667009537 + ... + 2667009544.

Almost surely, 2^21336076324 is an apocalyptic number.

It is an amenable number.

21336076324 is a deficient number, since it is larger than the sum of its proper divisors (16002057250).

21336076324 is a wasteful number, since it uses less digits than its factorization.

21336076324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334019085 (or 5334019083 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 21336076324 in words is "twenty-one billion, three hundred thirty-six million, seventy-six thousand, three hundred twenty-four".