20460551143511 has 2 divisors, whose sum is σ = 20460551143512. Its totient is φ = 20460551143510.

The previous prime is 20460551143477. The next prime is 20460551143589. The reversal of 20460551143511 is 11534115506402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20460551143511 - 2²² = 20460546949207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20460551143211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230275571755 + 10230275571756.

It is an arithmetic number, because the mean of its divisors is an integer number (10230275571756).

Almost surely, 2^{20460551143511} is an apocalyptic number.

20460551143511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460551143511 is an equidigital number, since it uses as much as digits as its factorization.

20460551143511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 20460551143511 its reverse (11534115506402), we get a palindrome (31994666649913).

The spelling of 20460551143511 in words is "twenty trillion, four hundred sixty billion, five hundred fifty-one million, one hundred forty-three thousand, five hundred eleven".