11453501220555 has 16 divisors (see below), whose sum is σ = 19403578538784. Its totient is φ = 5749208455680.

The previous prime is 11453501220533. The next prime is 11453501220599. The reversal of 11453501220555 is 55502210535411.

It is not a de Polignac number, because 11453501220555 - 2¹⁸ = 11453500958411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22457845276 + ... + 22457845785.

It is an arithmetic number, because the mean of its divisors is an integer number (1212723658674).

Almost surely, 2^{11453501220555} is an apocalyptic number.

11453501220555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11453501220555 is a deficient number, since it is larger than the sum of its proper divisors (7950077318229).

11453501220555 is a wasteful number, since it uses less digits than its factorization.

11453501220555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44915691086.

The product of its (nonzero) digits is 150000, while the sum is 39.

Adding to 11453501220555 its reverse (55502210535411), we get a palindrome (66955711755966).

The spelling of 11453501220555 in words is "eleven trillion, four hundred fifty-three billion, five hundred one million, two hundred twenty thousand, five hundred fifty-five".