2164012636 has 48 divisors (see below), whose sum is σ = 3997788480. Its totient is φ = 1023598080.

The previous prime is 2164012601. The next prime is 2164012649. The reversal of 2164012636 is 6362104612.

It is a junction number, because it is equal to n+sod(n) for n = 2164012598 and 2164012607.

It is a congruent number.

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, 3051850 + ... + 3052558.

It is an arithmetic number, because the mean of its divisors is an integer number (83287260).

Almost surely, 2^2164012636 is an apocalyptic number.

It is an amenable number.

2164012636 is a deficient number, since it is larger than the sum of its proper divisors (1833775844).

2164012636 is a wasteful number, since it uses less digits than its factorization.

2164012636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2164012636 is about 46518.9492142718. The cubic root of 2164012636 is about 1293.4607783211.

The spelling of 2164012636 in words is "two billion, one hundred sixty-four million, twelve thousand, six hundred thirty-six".