2155311057441 has 16 divisors (see below), whose sum is σ = 2884346599680. Its totient is φ = 1431583877760.

The previous prime is 2155311057391. The next prime is 2155311057481. The reversal of 2155311057441 is 1447501135512.

It is not a de Polignac number, because 2155311057441 - 2¹⁷ = 2155310926369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2155311057441.

It is not an unprimeable number, because it can be changed into a prime (2155311057481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189276 + ... + 2084813.

It is an arithmetic number, because the mean of its divisors is an integer number (180271662480).

Almost surely, 2^{2155311057441} is an apocalyptic number.

It is an amenable number.

2155311057441 is a deficient number, since it is larger than the sum of its proper divisors (729035542239).

2155311057441 is a wasteful number, since it uses less digits than its factorization.

2155311057441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275256.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 2155311057441 in words is "two trillion, one hundred fifty-five billion, three hundred eleven million, fifty-seven thousand, four hundred forty-one".