20932591633 has 2 divisors, whose sum is σ = 20932591634. Its totient is φ = 20932591632.

The previous prime is 20932591609. The next prime is 20932591637. The reversal of 20932591633 is 33619523902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18352662784 + 2579928849 = 135472^2 + 50793^2 .

It is a cyclic number.

It is not a de Polignac number, because 20932591633 - 2⁵ = 20932591601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20932591633.

It is not a weakly prime, because it can be changed into another prime (20932591637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10466295816 + 10466295817.

It is an arithmetic number, because the mean of its divisors is an integer number (10466295817).

Almost surely, 2^20932591633 is an apocalyptic number.

It is an amenable number.

20932591633 is a deficient number, since it is larger than the sum of its proper divisors (1).

20932591633 is an equidigital number, since it uses as much as digits as its factorization.

20932591633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 43.

The spelling of 20932591633 in words is "twenty billion, nine hundred thirty-two million, five hundred ninety-one thousand, six hundred thirty-three".