20006614621 has 8 divisors (see below), whose sum is σ = 23004977984. Its totient is φ = 17043320160.

The previous prime is 20006614603. The next prime is 20006614643. The reversal of 20006614621 is 12641660002.

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

It is a cyclic number.

It is not a de Polignac number, because 20006614621 - 2³¹ = 17859130973 is a prime.

It is a super-4 number, since 4×20006614621⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20006614621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006614321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8766000 + ... + 8768281.

It is an arithmetic number, because the mean of its divisors is an integer number (2875622248).

Almost surely, 2^20006614621 is an apocalyptic number.

It is an amenable number.

20006614621 is a deficient number, since it is larger than the sum of its proper divisors (2998363363).

20006614621 is a wasteful number, since it uses less digits than its factorization.

20006614621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17534451.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 20006614621 in words is "twenty billion, six million, six hundred fourteen thousand, six hundred twenty-one".