2150420405155 has 8 divisors (see below), whose sum is σ = 2815095803184. Its totient is φ = 1563942112800.

The previous prime is 2150420405153. The next prime is 2150420405197. The reversal of 2150420405155 is 5515040240512.

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

It is not a de Polignac number, because 2150420405155 - 2¹ = 2150420405153 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 2150420405155.

It is not an unprimeable number, because it can be changed into a prime (2150420405153) 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, 19549276356 + ... + 19549276465.

It is an arithmetic number, because the mean of its divisors is an integer number (351886975398).

Almost surely, 2^{2150420405155} is an apocalyptic number.

2150420405155 is a deficient number, since it is larger than the sum of its proper divisors (664675398029).

2150420405155 is a wasteful number, since it uses less digits than its factorization.

2150420405155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39098552837.

The product of its (nonzero) digits is 40000, while the sum is 34.

Adding to 2150420405155 its reverse (5515040240512), we get a palindrome (7665460645667).

The spelling of 2150420405155 in words is "two trillion, one hundred fifty billion, four hundred twenty million, four hundred five thousand, one hundred fifty-five".