11051456531515 has 4 divisors (see below), whose sum is σ = 13261747837824. Its totient is φ = 8841165225208.

The previous prime is 11051456531513. The next prime is 11051456531581. The reversal of 11051456531515 is 51513565415011.

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 11051456531515 - 2¹ = 11051456531513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11051456531513) 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, 1105145653147 + ... + 1105145653156.

It is an arithmetic number, because the mean of its divisors is an integer number (3315436959456).

Almost surely, 2^{11051456531515} is an apocalyptic number.

11051456531515 is a deficient number, since it is larger than the sum of its proper divisors (2210291306309).

11051456531515 is an equidigital number, since it uses as much as digits as its factorization.

11051456531515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210291306308.

The product of its (nonzero) digits is 225000, while the sum is 43.

The spelling of 11051456531515 in words is "eleven trillion, fifty-one billion, four hundred fifty-six million, five hundred thirty-one thousand, five hundred fifteen".