20034415166221 has 4 divisors (see below), whose sum is σ = 20129365001344. Its totient is φ = 19939465331100.

The previous prime is 20034415166203. The next prime is 20034415166251. The reversal of 20034415166221 is 12266151443002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20034415166221 - 2⁵ = 20034415166189 is a prime.

It is a super-3 number, since 3×20034415166221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034415166201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47474917245 + ... + 47474917666.

It is an arithmetic number, because the mean of its divisors is an integer number (5032341250336).

Almost surely, 2^{20034415166221} is an apocalyptic number.

It is an amenable number.

20034415166221 is a deficient number, since it is larger than the sum of its proper divisors (94949835123).

20034415166221 is an equidigital number, since it uses as much as digits as its factorization.

20034415166221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94949835122.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 20034415166221 in words is "twenty trillion, thirty-four billion, four hundred fifteen million, one hundred sixty-six thousand, two hundred twenty-one".