20066358637 has 8 divisors (see below), whose sum is σ = 21619072160. Its totient is φ = 18514951920.

The previous prime is 20066358601. The next prime is 20066358661. The reversal of 20066358637 is 73685366002.

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 20066358637 - 2¹⁵ = 20066325869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066358677) 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, 294687 + ... + 356332.

It is an arithmetic number, because the mean of its divisors is an integer number (2702384020).

Almost surely, 2^20066358637 is an apocalyptic number.

It is an amenable number.

20066358637 is a deficient number, since it is larger than the sum of its proper divisors (1552713523).

20066358637 is a wasteful number, since it uses less digits than its factorization.

20066358637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653403.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 20066358637 in words is "twenty billion, sixty-six million, three hundred fifty-eight thousand, six hundred thirty-seven".