11045665512553 has 16 divisors (see below), whose sum is σ = 12691138720000. Its totient is φ = 9417103198272.

The previous prime is 11045665512481. The next prime is 11045665512571. The reversal of 11045665512553 is 35521556654011.

It is not a de Polignac number, because 11045665512553 - 2²¹ = 11045663415401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11045665512497 and 11045665512506.

It is not an unprimeable number, because it can be changed into a prime (11045665512853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3055603 + ... + 5606071.

It is an arithmetic number, because the mean of its divisors is an integer number (793196170000).

Almost surely, 2^{11045665512553} is an apocalyptic number.

It is an amenable number.

11045665512553 is a deficient number, since it is larger than the sum of its proper divisors (1645473207447).

11045665512553 is a wasteful number, since it uses less digits than its factorization.

11045665512553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553784.

The product of its (nonzero) digits is 2700000, while the sum is 49.

The spelling of 11045665512553 in words is "eleven trillion, forty-five billion, six hundred sixty-five million, five hundred twelve thousand, five hundred fifty-three".