13405515220053 has 12 divisors (see below), whose sum is σ = 21123842165088. Its totient is φ = 8124554678760.

The previous prime is 13405515220049. The next prime is 13405515220079. The reversal of 13405515220053 is 35002251550431.

13405515220053 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 551 + 52 + 2 + 0 + 0 + 53 = 666.

It is not a de Polignac number, because 13405515220053 - 2² = 13405515220049 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405515220003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67704622225 + ... + 67704622422.

It is an arithmetic number, because the mean of its divisors is an integer number (1760320180424).

Almost surely, 2^{13405515220053} is an apocalyptic number.

It is an amenable number.

13405515220053 is a deficient number, since it is larger than the sum of its proper divisors (7718326945035).

13405515220053 is a wasteful number, since it uses less digits than its factorization.

13405515220053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135409244664 (or 135409244661 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 13405515220053 its reverse (35002251550431), we get a palindrome (48407766770484).

The spelling of 13405515220053 in words is "thirteen trillion, four hundred five billion, five hundred fifteen million, two hundred twenty thousand, fifty-three".