20064224661 has 8 divisors (see below), whose sum is σ = 28810168800. Its totient is φ = 12347215152.

The previous prime is 20064224657. The next prime is 20064224671. The reversal of 20064224661 is 16642246002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20064224661 - 2² = 20064224657 is a prime.

It is a super-2 number, since 2×20064224661² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20064224611) 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, 257233611 + ... + 257233688.

It is an arithmetic number, because the mean of its divisors is an integer number (3601271100).

Almost surely, 2^20064224661 is an apocalyptic number.

It is an amenable number.

20064224661 is a deficient number, since it is larger than the sum of its proper divisors (8745944139).

20064224661 is a wasteful number, since it uses less digits than its factorization.

20064224661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514467315.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 20064224661 in words is "twenty billion, sixty-four million, two hundred twenty-four thousand, six hundred sixty-one".