2163431998215 has 80 divisors (see below), whose sum is σ = 3888822693888. Its totient is φ = 1150658841024.

The previous prime is 2163431998207. The next prime is 2163431998241. The reversal of 2163431998215 is 5128991343612.

2163431998215 is a `hidden beast` number, since 21 + 6 + 3 + 4 + 319 + 98 + 215 = 666.

It is not a de Polignac number, because 2163431998215 - 2³ = 2163431998207 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (2799360) is a multiple of the sum of its prime factors (7290).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 593858184 + ... + 593861826.

Almost surely, 2^{2163431998215} is an apocalyptic number.

2163431998215 is a deficient number, since it is larger than the sum of its proper divisors (1725390695673).

2163431998215 is a wasteful number, since it uses less digits than its factorization.

2163431998215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290 (or 7281 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 2163431998215 in words is "two trillion, one hundred sixty-three billion, four hundred thirty-one million, nine hundred ninety-eight thousand, two hundred fifteen".