42155333511 has 16 divisors (see below), whose sum is σ = 56779213920. Its totient is φ = 27818017920.

The previous prime is 42155333491. The next prime is 42155333531. The reversal of 42155333511 is 11533355124.

It is an interprime number because it is at equal distance from previous prime (42155333491) and next prime (42155333531).

It is not a de Polignac number, because 42155333511 - 2¹⁸ = 42155071367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155333531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 267621 + ... + 394881.

It is an arithmetic number, because the mean of its divisors is an integer number (3548700870).

Almost surely, 2^42155333511 is an apocalyptic number.

42155333511 is a deficient number, since it is larger than the sum of its proper divisors (14623880409).

42155333511 is a wasteful number, since it uses less digits than its factorization.

42155333511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128386.

The product of its digits is 27000, while the sum is 33.

Adding to 42155333511 its reverse (11533355124), we get a palindrome (53688688635).

The spelling of 42155333511 in words is "forty-two billion, one hundred fifty-five million, three hundred thirty-three thousand, five hundred eleven".