20663060204507 has 8 divisors (see below), whose sum is σ = 23616067979232. Its totient is φ = 17710337937600.

The previous prime is 20663060204491. The next prime is 20663060204537. The reversal of 20663060204507 is 70540206036602.

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

It is not a de Polignac number, because 20663060204507 - 2⁴ = 20663060204491 is a prime.

It is a super-2 number, since 2×20663060204507² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20663060204537) 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, 71221844 + ... + 71511377.

It is an arithmetic number, because the mean of its divisors is an integer number (2952008497404).

Almost surely, 2^{20663060204507} is an apocalyptic number.

20663060204507 is a deficient number, since it is larger than the sum of its proper divisors (2953007774725).

20663060204507 is a wasteful number, since it uses less digits than its factorization.

20663060204507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142753909.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 20663060204507 in words is "twenty trillion, six hundred sixty-three billion, sixty million, two hundred four thousand, five hundred seven".