20067539413 has 2 divisors, whose sum is σ = 20067539414. Its totient is φ = 20067539412.

The previous prime is 20067539369. The next prime is 20067539423. The reversal of 20067539413 is 31493576002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19270437124 + 797102289 = 138818^2 + 28233^2 .

It is a cyclic number.

It is not a de Polignac number, because 20067539413 - 2¹⁷ = 20067408341 is a prime.

It is a super-2 number, since 2×20067539413² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20067539423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10033769706 + 10033769707.

It is an arithmetic number, because the mean of its divisors is an integer number (10033769707).

Almost surely, 2^20067539413 is an apocalyptic number.

It is an amenable number.

20067539413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20067539413 is an equidigital number, since it uses as much as digits as its factorization.

20067539413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 20067539413 in words is "twenty billion, sixty-seven million, five hundred thirty-nine thousand, four hundred thirteen".