20734132567 has 2 divisors, whose sum is σ = 20734132568. Its totient is φ = 20734132566.

The previous prime is 20734132553. The next prime is 20734132571. The reversal of 20734132567 is 76523143702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20734132567 - 2²³ = 20725743959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20734132577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10367066283 + 10367066284.

It is an arithmetic number, because the mean of its divisors is an integer number (10367066284).

Almost surely, 2^20734132567 is an apocalyptic number.

20734132567 is a deficient number, since it is larger than the sum of its proper divisors (1).

20734132567 is an equidigital number, since it uses as much as digits as its factorization.

20734132567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 20734132567 in words is "twenty billion, seven hundred thirty-four million, one hundred thirty-two thousand, five hundred sixty-seven".