6650890133 has 4 divisors (see below), whose sum is σ = 6865435008. Its totient is φ = 6436345260.

The previous prime is 6650890117. The next prime is 6650890159. The reversal of 6650890133 is 3310980566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3310980566 = 2 ⋅1655490283.

It is a cyclic number.

It is not a de Polignac number, because 6650890133 - 2⁴ = 6650890117 is a prime.

It is a super-2 number, since 2×6650890133² = 88468679122473515378, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650890163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107272391 + ... + 107272452.

It is an arithmetic number, because the mean of its divisors is an integer number (1716358752).

Almost surely, 2^6650890133 is an apocalyptic number.

It is an amenable number.

6650890133 is a deficient number, since it is larger than the sum of its proper divisors (214544875).

6650890133 is a wasteful number, since it uses less digits than its factorization.

6650890133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214544874.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 6650890133 is about 81552.9897244730. The cubic root of 6650890133 is about 1880.5862564461.

The spelling of 6650890133 in words is "six billion, six hundred fifty million, eight hundred ninety thousand, one hundred thirty-three".