87655432222111 has 16 divisors (see below), whose sum is σ = 96833565436608. Its totient is φ = 78830643513600.

The previous prime is 87655432222093. The next prime is 87655432222181. The reversal of 87655432222111 is 11122223455678.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87655432222111 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87655432222181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112718920 + ... + 113493901.

It is an arithmetic number, because the mean of its divisors is an integer number (6052097839788).

Almost surely, 2^{87655432222111} is an apocalyptic number.

87655432222111 is a deficient number, since it is larger than the sum of its proper divisors (9178133214497).

87655432222111 is a wasteful number, since it uses less digits than its factorization.

87655432222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226213602.

The product of its digits is 1612800, while the sum is 49.

Adding to 87655432222111 its reverse (11122223455678), we get a palindrome (98777655677789).

The spelling of 87655432222111 in words is "eighty-seven trillion, six hundred fifty-five billion, four hundred thirty-two million, two hundred twenty-two thousand, one hundred eleven".