11345220045 has 80 divisors (see below), whose sum is σ = 21586245120. Its totient is φ = 5680958976.

The previous prime is 11345219989. The next prime is 11345220059. The reversal of 11345220045 is 54002254311.

11345220045 is a `hidden beast` number, since 1 + 1 + 3 + 452 + 200 + 4 + 5 = 666.

It is not a de Polignac number, because 11345220045 - 2⁶ = 11345219981 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3185976 + ... + 3189534.

It is an arithmetic number, because the mean of its divisors is an integer number (269828064).

Almost surely, 2^11345220045 is an apocalyptic number.

11345220045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11345220045 is a deficient number, since it is larger than the sum of its proper divisors (10241025075).

11345220045 is a wasteful number, since it uses less digits than its factorization.

11345220045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056 (or 4047 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 11345220045 its reverse (54002254311), we get a palindrome (65347474356).

The spelling of 11345220045 in words is "eleven billion, three hundred forty-five million, two hundred twenty thousand, forty-five".