2133651466 has 4 divisors (see below), whose sum is σ = 3200477202. Its totient is φ = 1066825732.

The previous prime is 2133651463. The next prime is 2133651469. The reversal of 2133651466 is 6641563312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2133651463) and next prime (2133651469).

It can be written as a sum of positive squares in only one way, i.e., 1566497241 + 567154225 = 39579^2 + 23815^2 .

It is not an unprimeable number, because it can be changed into a prime (2133651461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533412865 + ... + 533412868.

Almost surely, 2^2133651466 is an apocalyptic number.

2133651466 is a deficient number, since it is larger than the sum of its proper divisors (1066825736).

2133651466 is a wasteful number, since it uses less digits than its factorization.

2133651466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066825735.

The product of its digits is 77760, while the sum is 37.

The square root of 2133651466 is about 46191.4652939263. The cubic root of 2133651466 is about 1287.3831666504.

The spelling of 2133651466 in words is "two billion, one hundred thirty-three million, six hundred fifty-one thousand, four hundred sixty-six".