2231187649556 has 24 divisors (see below), whose sum is σ = 4110282288000. Its totient is φ = 1056826989504.

The previous prime is 2231187649549. The next prime is 2231187649567. The reversal of 2231187649556 is 6559467811322.

It is a super-3 number, since 3×2231187649556³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231187649495 and 2231187649504.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 883760 + ... + 2289848.

It is an arithmetic number, because the mean of its divisors is an integer number (171261762000).

Almost surely, 2^{2231187649556} is an apocalyptic number.

It is an amenable number.

2231187649556 is a deficient number, since it is larger than the sum of its proper divisors (1879094638444).

2231187649556 is a wasteful number, since it uses less digits than its factorization.

2231187649556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426991 (or 1426989 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The spelling of 2231187649556 in words is "two trillion, two hundred thirty-one billion, one hundred eighty-seven million, six hundred forty-nine thousand, five hundred fifty-six".