2155502142404 has 24 divisors (see below), whose sum is σ = 4081545091008. Its totient is φ = 990132222240.

The previous prime is 2155502142397. The next prime is 2155502142449. The reversal of 2155502142404 is 4042412055512.

It is an unprimeable number.

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, 98216432 + ... + 98238375.

It is an arithmetic number, because the mean of its divisors is an integer number (170064378792).

Almost surely, 2^{2155502142404} is an apocalyptic number.

It is an amenable number.

2155502142404 is a deficient number, since it is larger than the sum of its proper divisors (1926042948604).

2155502142404 is a wasteful number, since it uses less digits than its factorization.

2155502142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196455035 (or 196455033 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 2155502142404 its reverse (4042412055512), we get a palindrome (6197914197916).

The spelling of 2155502142404 in words is "two trillion, one hundred fifty-five billion, five hundred two million, one hundred forty-two thousand, four hundred four".