20067561037451 has 2 divisors, whose sum is σ = 20067561037452. Its totient is φ = 20067561037450.

The previous prime is 20067561037439. The next prime is 20067561037477. The reversal of 20067561037451 is 15473016576002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20067561037451 - 2¹⁰ = 20067561036427 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20067561037396 and 20067561037405.

It is not a weakly prime, because it can be changed into another prime (20067561007451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033780518725 + 10033780518726.

It is an arithmetic number, because the mean of its divisors is an integer number (10033780518726).

Almost surely, 2^{20067561037451} is an apocalyptic number.

20067561037451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20067561037451 is an equidigital number, since it uses as much as digits as its factorization.

20067561037451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 20067561037451 in words is "twenty trillion, sixty-seven billion, five hundred sixty-one million, thirty-seven thousand, four hundred fifty-one".