20615501341 has 2 divisors, whose sum is σ = 20615501342. Its totient is φ = 20615501340.

The previous prime is 20615501339. The next prime is 20615501369. The reversal of 20615501341 is 14310551602.

It is an a-pointer prime, because the next prime (20615501369) can be obtained adding 20615501341 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10680395716 + 9935105625 = 103346^2 + 99675^2 .

It is a cyclic number.

It is not a de Polignac number, because 20615501341 - 2¹ = 20615501339 is a prime.

Together with 20615501339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20615501321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10307750670 + 10307750671.

It is an arithmetic number, because the mean of its divisors is an integer number (10307750671).

Almost surely, 2^20615501341 is an apocalyptic number.

It is an amenable number.

20615501341 is a deficient number, since it is larger than the sum of its proper divisors (1).

20615501341 is an equidigital number, since it uses as much as digits as its factorization.

20615501341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 20615501341 in words is "twenty billion, six hundred fifteen million, five hundred one thousand, three hundred forty-one".