11553213321637 has 16 divisors (see below), whose sum is σ = 12812964192000. Its totient is φ = 10351044535104.

The previous prime is 11553213321623. The next prime is 11553213321667. The reversal of 11553213321637 is 73612331235511.

It is not a de Polignac number, because 11553213321637 - 2¹⁹ = 11553212797349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11553213321593 and 11553213321602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553213321667) 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 15 ways as a sum of consecutive naturals, for example, 95273962 + ... + 95395147.

It is an arithmetic number, because the mean of its divisors is an integer number (800810262000).

Almost surely, 2^{11553213321637} is an apocalyptic number.

It is an amenable number.

11553213321637 is a deficient number, since it is larger than the sum of its proper divisors (1259750870363).

11553213321637 is a wasteful number, since it uses less digits than its factorization.

11553213321637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190669260.

The product of its digits is 340200, while the sum is 43.

The spelling of 11553213321637 in words is "eleven trillion, five hundred fifty-three billion, two hundred thirteen million, three hundred twenty-one thousand, six hundred thirty-seven".