20066634635 has 16 divisors (see below), whose sum is σ = 25352870400. Its totient is φ = 15205071456.

The previous prime is 20066634629. The next prime is 20066634659. The reversal of 20066634635 is 53643666002.

It is a cyclic number.

It is not a de Polignac number, because 20066634635 - 2¹⁰ = 20066633611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20066634592 and 20066634601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468446 + ... + 509484.

It is an arithmetic number, because the mean of its divisors is an integer number (1584554400).

Almost surely, 2^20066634635 is an apocalyptic number.

20066634635 is a deficient number, since it is larger than the sum of its proper divisors (5286235765).

20066634635 is a wasteful number, since it uses less digits than its factorization.

20066634635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46210.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 20066634635 in words is "twenty billion, sixty-six million, six hundred thirty-four thousand, six hundred thirty-five".