2155015351441 has 4 divisors (see below), whose sum is σ = 2156376701952. Its totient is φ = 2153654000932.

The previous prime is 2155015351429. The next prime is 2155015351493. The reversal of 2155015351441 is 1441535105512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2155015351441 - 2²⁹ = 2154478480529 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 2155015351441.

It is not an unprimeable number, because it can be changed into a prime (2155015351241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680672881 + ... + 680676046.

It is an arithmetic number, because the mean of its divisors is an integer number (539094175488).

Almost surely, 2^{2155015351441} is an apocalyptic number.

It is an amenable number.

2155015351441 is a deficient number, since it is larger than the sum of its proper divisors (1361350511).

2155015351441 is a wasteful number, since it uses less digits than its factorization.

2155015351441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361350510.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 2155015351441 in words is "two trillion, one hundred fifty-five billion, fifteen million, three hundred fifty-one thousand, four hundred forty-one".