11315361645 has 48 divisors (see below), whose sum is σ = 23021032320. Its totient is φ = 5032927872.

The previous prime is 11315361643. The next prime is 11315361647. The reversal of 11315361645 is 54616351311.

11315361645 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 5 + 3 + 6 + 1 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (11315361643) and next prime (11315361647).

It is not a de Polignac number, because 11315361645 - 2¹ = 11315361643 is a prime.

It is a super-3 number, since 3×11315361645³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11315361641) 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 47 ways as a sum of consecutive naturals, for example, 473775 + ... + 497084.

It is an arithmetic number, because the mean of its divisors is an integer number (479604840).

Almost surely, 2^11315361645 is an apocalyptic number.

11315361645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11315361645 is an abundant number, since it is smaller than the sum of its proper divisors (11705670675).

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

11315361645 is a wasteful number, since it uses less digits than its factorization.

11315361645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970914 (or 970911 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The spelling of 11315361645 in words is "eleven billion, three hundred fifteen million, three hundred sixty-one thousand, six hundred forty-five".