11310951645 has 64 divisors (see below), whose sum is σ = 23070896640. Its totient is φ = 5150490624.

The previous prime is 11310951643. The next prime is 11310951671. The reversal of 11310951645 is 54615901311.

11310951645 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 0 + 9 + 5 + 1 + 645 = 666.

It is not a de Polignac number, because 11310951645 - 2¹ = 11310951643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11310951643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219579 + ... + 266151.

It is an arithmetic number, because the mean of its divisors is an integer number (360482760).

Almost surely, 2^11310951645 is an apocalyptic number.

11310951645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11310951645 is an abundant number, since it is smaller than the sum of its proper divisors (11759944995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11310951645 is a wasteful number, since it uses less digits than its factorization.

11310951645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46851 (or 46845 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 11310951645 in words is "eleven billion, three hundred ten million, nine hundred fifty-one thousand, six hundred forty-five".