11553620324 has 12 divisors (see below), whose sum is σ = 20354533500. Its totient is φ = 5738039328.

The previous prime is 11553620311. The next prime is 11553620327. The reversal of 11553620324 is 42302635511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6381133924 + 5172486400 = 79882^2 + 71920^2 .

It is a super-2 number, since 2×11553620324² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11553620327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9692039 + ... + 9693230.

It is an arithmetic number, because the mean of its divisors is an integer number (1696211125).

Almost surely, 2^11553620324 is an apocalyptic number.

It is an amenable number.

11553620324 is a deficient number, since it is larger than the sum of its proper divisors (8800913176).

11553620324 is a wasteful number, since it uses less digits than its factorization.

11553620324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19385422 (or 19385420 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 11553620324 in words is "eleven billion, five hundred fifty-three million, six hundred twenty thousand, three hundred twenty-four".