21364121663030 has 16 divisors (see below), whose sum is σ = 38455774102224. Its totient is φ = 8545569752160.

The previous prime is 21364121662997. The next prime is 21364121663039. The reversal of 21364121663030 is 3036612146312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21364121663039) 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, 8720756 + ... + 10898615.

It is an arithmetic number, because the mean of its divisors is an integer number (2403485881389).

Almost surely, 2^{21364121663030} is an apocalyptic number.

21364121663030 is a deficient number, since it is larger than the sum of its proper divisors (17091652439194).

21364121663030 is a wasteful number, since it uses less digits than its factorization.

21364121663030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19728271.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 21364121663030 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred twenty-one million, six hundred sixty-three thousand, thirty".