10021366533420 has 288 divisors, whose sum is σ = 34355986929600. Its totient is φ = 2423296465920.

The previous prime is 10021366533329. The next prime is 10021366533523. The reversal of 10021366533420 is 2433566312001.

10021366533420 is a `hidden beast` number, since 1 + 0 + 0 + 21 + 3 + 66 + 533 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25746816 + ... + 26133144.

Almost surely, 2^{10021366533420} is an apocalyptic number.

10021366533420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021366533420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17177993464800).

10021366533420 is an abundant number, since it is smaller than the sum of its proper divisors (24334620396180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021366533420 is a wasteful number, since it uses less digits than its factorization.

10021366533420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386766 (or 386747 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 10021366533420 in words is "ten trillion, twenty-one billion, three hundred sixty-six million, five hundred thirty-three thousand, four hundred twenty".