21604032101036 has 48 divisors (see below), whose sum is σ = 49908780052992. Its totient is φ = 7922028576000.

The previous prime is 21604032101023. The next prime is 21604032101039. The reversal of 21604032101036 is 63010123040612.

It is not an unprimeable number, because it can be changed into a prime (21604032101039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2063023040 + ... + 2063033511.

It is an arithmetic number, because the mean of its divisors is an integer number (1039766251104).

Almost surely, 2^{21604032101036} is an apocalyptic number.

It is an amenable number.

21604032101036 is an abundant number, since it is smaller than the sum of its proper divisors (28304747951956).

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

21604032101036 is a wasteful number, since it uses less digits than its factorization.

21604032101036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126056590 (or 4126056588 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 21604032101036 its reverse (63010123040612), we get a palindrome (84614155141648).

The spelling of 21604032101036 in words is "twenty-one trillion, six hundred four billion, thirty-two million, one hundred one thousand, thirty-six".