20430622664509 has 8 divisors (see below), whose sum is σ = 21506004453440. Its totient is φ = 19355249461536.

The previous prime is 20430622664503. The next prime is 20430622664533. The reversal of 20430622664509 is 90546622603402.

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 20430622664509 - 2⁷ = 20430622664381 is a prime.

It is a super-2 number, since 2×20430622664509² (a number of 27 digits) contains 22 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 (20430622664503) 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, 3061912 + ... + 7087774.

It is an arithmetic number, because the mean of its divisors is an integer number (2688250556680).

Almost surely, 2^{20430622664509} is an apocalyptic number.

It is an amenable number.

20430622664509 is a deficient number, since it is larger than the sum of its proper divisors (1075381788931).

20430622664509 is a wasteful number, since it uses less digits than its factorization.

20430622664509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292979.

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 20430622664509 in words is "twenty trillion, four hundred thirty billion, six hundred twenty-two million, six hundred sixty-four thousand, five hundred nine".