11045642210551 has 32 divisors (see below), whose sum is σ = 12660299939840. Its totient is φ = 9552663154944.

The previous prime is 11045642210549. The next prime is 11045642210563. The reversal of 11045642210551 is 15501224654011.

11045642210551 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 11045642210551 - 2¹ = 11045642210549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11045642210551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11045642210501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9256006 + ... + 10380988.

It is an arithmetic number, because the mean of its divisors is an integer number (395634373120).

Almost surely, 2^{11045642210551} is an apocalyptic number.

11045642210551 is a deficient number, since it is larger than the sum of its proper divisors (1614657729289).

11045642210551 is a wasteful number, since it uses less digits than its factorization.

11045642210551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125455.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 11045642210551 its reverse (15501224654011), we get a palindrome (26546866864562).

The spelling of 11045642210551 in words is "eleven trillion, forty-five billion, six hundred forty-two million, two hundred ten thousand, five hundred fifty-one".