11572554381 has 8 divisors (see below), whose sum is σ = 16337723904. Its totient is φ = 7261210560.

The previous prime is 11572554373. The next prime is 11572554401. The reversal of 11572554381 is 18345527511.

11572554381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11572554381 - 2³ = 11572554373 is a prime.

It is a super-2 number, since 2×11572554381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11572554311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113456365 + ... + 113456466.

It is an arithmetic number, because the mean of its divisors is an integer number (2042215488).

Almost surely, 2^11572554381 is an apocalyptic number.

It is an amenable number.

11572554381 is a deficient number, since it is larger than the sum of its proper divisors (4765169523).

11572554381 is a wasteful number, since it uses less digits than its factorization.

11572554381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226912851.

The product of its digits is 168000, while the sum is 42.

The spelling of 11572554381 in words is "eleven billion, five hundred seventy-two million, five hundred fifty-four thousand, three hundred eighty-one".