21320082635018 has 8 divisors (see below), whose sum is σ = 33370564124448. Its totient is φ = 10196561260204.

The previous prime is 21320082634969. The next prime is 21320082635063. The reversal of 21320082635018 is 81053628002312.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231740028596 + ... + 231740028687.

It is an arithmetic number, because the mean of its divisors is an integer number (4171320515556).

Almost surely, 2^{21320082635018} is an apocalyptic number.

21320082635018 is a deficient number, since it is larger than the sum of its proper divisors (12050481489430).

21320082635018 is a wasteful number, since it uses less digits than its factorization.

21320082635018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463480057308.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 21320082635018 in words is "twenty-one trillion, three hundred twenty billion, eighty-two million, six hundred thirty-five thousand, eighteen".