2111636640254 has 16 divisors (see below), whose sum is σ = 3169813273200. Its totient is φ = 1055032486464.

The previous prime is 2111636640233. The next prime is 2111636640263. The reversal of 2111636640254 is 4520466361112.

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, 16268042 + ... + 16397330.

It is an arithmetic number, because the mean of its divisors is an integer number (198113329575).

Almost surely, 2^{2111636640254} is an apocalyptic number.

2111636640254 is a deficient number, since it is larger than the sum of its proper divisors (1058176632946).

2111636640254 is a wasteful number, since it uses less digits than its factorization.

2111636640254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135307.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 2111636640254 in words is "two trillion, one hundred eleven billion, six hundred thirty-six million, six hundred forty thousand, two hundred fifty-four".