20667703573 has 16 divisors (see below), whose sum is σ = 24118988544. Its totient is φ = 17501276160.

The previous prime is 20667703541. The next prime is 20667703577. The reversal of 20667703573 is 37530776602.

It is a cyclic number.

It is not a de Polignac number, because 20667703573 - 2⁵ = 20667703541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20667703577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551565 + ... + 587842.

It is an arithmetic number, because the mean of its divisors is an integer number (1507436784).

Almost surely, 2^20667703573 is an apocalyptic number.

It is an amenable number.

20667703573 is a deficient number, since it is larger than the sum of its proper divisors (3451284971).

20667703573 is a wasteful number, since it uses less digits than its factorization.

20667703573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139532.

The product of its (nonzero) digits is 1111320, while the sum is 46.

The spelling of 20667703573 in words is "twenty billion, six hundred sixty-seven million, seven hundred three thousand, five hundred seventy-three".