2155440025441 has 8 divisors (see below), whose sum is σ = 2163495270464. Its totient is φ = 2147386751280.

The previous prime is 2155440025429. The next prime is 2155440025457. The reversal of 2155440025441 is 1445200445512.

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 2155440025441 - 2⁷ = 2155440025313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155440025441.

It is not an unprimeable number, because it can be changed into a prime (2155440025471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717156 + ... + 2694346.

It is an arithmetic number, because the mean of its divisors is an integer number (270436908808).

Almost surely, 2^{2155440025441} is an apocalyptic number.

It is an amenable number.

2155440025441 is a deficient number, since it is larger than the sum of its proper divisors (8055245023).

2155440025441 is an equidigital number, since it uses as much as digits as its factorization.

2155440025441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985431.

The product of its (nonzero) digits is 128000, while the sum is 37.

The spelling of 2155440025441 in words is "two trillion, one hundred fifty-five billion, four hundred forty million, twenty-five thousand, four hundred forty-one".