2155542532511 has 8 divisors (see below), whose sum is σ = 2225244403200. Its totient is φ = 2085851176920.

The previous prime is 2155542532501. The next prime is 2155542532531. The reversal of 2155542532511 is 1152352455512.

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

It is a cyclic number.

It is not a de Polignac number, because 2155542532511 - 2¹⁸ = 2155542270367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155542532501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211101 + ... + 3033158.

It is an arithmetic number, because the mean of its divisors is an integer number (278155550400).

Almost surely, 2^{2155542532511} is an apocalyptic number.

2155542532511 is a deficient number, since it is larger than the sum of its proper divisors (69701870689).

2155542532511 is a wasteful number, since it uses less digits than its factorization.

2155542532511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257549.

The product of its digits is 300000, while the sum is 41.

The spelling of 2155542532511 in words is "two trillion, one hundred fifty-five billion, five hundred forty-two million, five hundred thirty-two thousand, five hundred eleven".