2146563155 has 16 divisors (see below), whose sum is σ = 2815008768. Its totient is φ = 1558380000.

The previous prime is 2146563127. The next prime is 2146563173. The reversal of 2146563155 is 5513656412.

It is not a de Polignac number, because 2146563155 - 2¹⁴ = 2146546771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2771 + ... + 65580.

It is an arithmetic number, because the mean of its divisors is an integer number (175938048).

Almost surely, 2^2146563155 is an apocalyptic number.

2146563155 is a deficient number, since it is larger than the sum of its proper divisors (668445613).

2146563155 is a wasteful number, since it uses less digits than its factorization.

2146563155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68938.

The product of its digits is 108000, while the sum is 38.

The square root of 2146563155 is about 46331.0172023020. The cubic root of 2146563155 is about 1289.9747916874.

The spelling of 2146563155 in words is "two billion, one hundred forty-six million, five hundred sixty-three thousand, one hundred fifty-five".