2236691664 has 80 divisors (see below), whose sum is σ = 6627274240. Its totient is φ = 721509120.

The previous prime is 2236691651. The next prime is 2236691689. The reversal of 2236691664 is 4661966322.

It is a nude number because it is divisible by every one of its digits.

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, 70117 + ... + 96900.

It is an arithmetic number, because the mean of its divisors is an integer number (82840928).

Almost surely, 2^2236691664 is an apocalyptic number.

2236691664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2236691664 is an abundant number, since it is smaller than the sum of its proper divisors (4390582576).

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

2236691664 is a wasteful number, since it uses less digits than its factorization.

2236691664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167065 (or 167053 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 2236691664 is about 47293.6746722011. The cubic root of 2236691664 is about 1307.7820527360.

The spelling of 2236691664 in words is "two billion, two hundred thirty-six million, six hundred ninety-one thousand, six hundred sixty-four".