13155460420051 has 4 divisors (see below), whose sum is σ = 13172176380712. Its totient is φ = 13138744459392.

The previous prime is 13155460420049. The next prime is 13155460420057. The reversal of 13155460420051 is 15002406455131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13155460420051 - 2¹ = 13155460420049 is a prime.

It is a super-2 number, since 2×13155460420051² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13155460420057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8357979150 + ... + 8357980723.

It is an arithmetic number, because the mean of its divisors is an integer number (3293044095178).

Almost surely, 2^{13155460420051} is an apocalyptic number.

13155460420051 is a deficient number, since it is larger than the sum of its proper divisors (16715960661).

13155460420051 is an equidigital number, since it uses as much as digits as its factorization.

13155460420051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16715960660.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 13155460420051 its reverse (15002406455131), we get a palindrome (28157866875182).

The spelling of 13155460420051 in words is "thirteen trillion, one hundred fifty-five billion, four hundred sixty million, four hundred twenty thousand, fifty-one".