21620470036002 has 64 divisors (see below), whose sum is σ = 45414054604800. Its totient is φ = 6856026193280.

The previous prime is 21620470035991. The next prime is 21620470036031. The reversal of 21620470036002 is 20063007402612.

It is a super-2 number, since 2×21620470036002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5819574 + ... + 8781137.

It is an arithmetic number, because the mean of its divisors is an integer number (709594603200).

Almost surely, 2^{21620470036002} is an apocalyptic number.

21620470036002 is an abundant number, since it is smaller than the sum of its proper divisors (23793584568798).

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

21620470036002 is a wasteful number, since it uses less digits than its factorization.

21620470036002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600911.

The product of its (nonzero) digits is 24192, while the sum is 33.

Adding to 21620470036002 its reverse (20063007402612), we get a palindrome (41683477438614).

The spelling of 21620470036002 in words is "twenty-one trillion, six hundred twenty billion, four hundred seventy million, thirty-six thousand, two".