11553556047 has 16 divisors (see below), whose sum is σ = 16870574592. Its totient is φ = 6974904320.

The previous prime is 11553555989. The next prime is 11553556051. The reversal of 11553556047 is 74065535511.

It is a cyclic number.

It is not a de Polignac number, because 11553556047 - 2⁷ = 11553555919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11553556057) 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, 672663 + ... + 689624.

It is an arithmetic number, because the mean of its divisors is an integer number (1054410912).

Almost surely, 2^11553556047 is an apocalyptic number.

11553556047 is a deficient number, since it is larger than the sum of its proper divisors (5317018545).

11553556047 is a wasteful number, since it uses less digits than its factorization.

11553556047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362558.

The product of its (nonzero) digits is 315000, while the sum is 42.

The spelling of 11553556047 in words is "eleven billion, five hundred fifty-three million, five hundred fifty-six thousand, forty-seven".