11051551413 has 16 divisors (see below), whose sum is σ = 18711621760. Its totient is φ = 6315172128.

The previous prime is 11051551409. The next prime is 11051551481. The reversal of 11051551413 is 31415515011.

11051551413 is a `hidden beast` number, since 1 + 1 + 0 + 515 + 5 + 141 + 3 = 666.

11051551413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11051551413 - 2² = 11051551409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11051551493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29236720 + ... + 29237097.

It is an arithmetic number, because the mean of its divisors is an integer number (1169476360).

Almost surely, 2^11051551413 is an apocalyptic number.

It is an amenable number.

11051551413 is a deficient number, since it is larger than the sum of its proper divisors (7660070347).

11051551413 is an equidigital number, since it uses as much as digits as its factorization.

11051551413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58473833 (or 58473827 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 11051551413 in words is "eleven billion, fifty-one million, five hundred fifty-one thousand, four hundred thirteen".