11555616453 has 16 divisors (see below), whose sum is σ = 15607228416. Its totient is φ = 7604357040.

The previous prime is 11555616433. The next prime is 11555616467. The reversal of 11555616453 is 35461655511.

It is not a de Polignac number, because 11555616453 - 2¹⁰ = 11555615429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555616433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35976 + ... + 156222.

It is an arithmetic number, because the mean of its divisors is an integer number (975451776).

Almost surely, 2^11555616453 is an apocalyptic number.

It is an amenable number.

11555616453 is a deficient number, since it is larger than the sum of its proper divisors (4051611963).

11555616453 is a wasteful number, since it uses less digits than its factorization.

11555616453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120664.

The product of its digits is 270000, while the sum is 42.

The spelling of 11555616453 in words is "eleven billion, five hundred fifty-five million, six hundred sixteen thousand, four hundred fifty-three".