2668501001 has 4 divisors (see below), whose sum is σ = 2670550272. Its totient is φ = 2666451732.

The previous prime is 2668500971. The next prime is 2668501007. The reversal of 2668501001 is 1001058662.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 2668501001 - 2²⁶ = 2601392137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2668501007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022681 + ... + 1025286.

It is an arithmetic number, because the mean of its divisors is an integer number (667637568).

Almost surely, 2^2668501001 is an apocalyptic number.

It is an amenable number.

2668501001 is a deficient number, since it is larger than the sum of its proper divisors (2049271).

2668501001 is a wasteful number, since it uses less digits than its factorization.

2668501001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049270.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2668501001 is about 51657.5357619777. The cubic root of 2668501001 is about 1387.0404399203.

Adding to 2668501001 its reverse (1001058662), we get a palindrome (3669559663).

The spelling of 2668501001 in words is "two billion, six hundred sixty-eight million, five hundred one thousand, one".