2003155214478 has 16 divisors (see below), whose sum is σ = 4370520468096. Its totient is φ = 607016731640.

The previous prime is 2003155214443. The next prime is 2003155214519. The reversal of 2003155214478 is 8744125513002.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15175418226 + ... + 15175418357.

It is an arithmetic number, because the mean of its divisors is an integer number (273157529256).

Almost surely, 2^{2003155214478} is an apocalyptic number.

2003155214478 is an abundant number, since it is smaller than the sum of its proper divisors (2367365253618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2003155214478 is a wasteful number, since it uses less digits than its factorization.

2003155214478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30350836599.

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 2003155214478 in words is "two trillion, three billion, one hundred fifty-five million, two hundred fourteen thousand, four hundred seventy-eight".