2664215023 has 4 divisors (see below), whose sum is σ = 2664849240. Its totient is φ = 2663580808.

The previous prime is 2664214981. The next prime is 2664215117. The reversal of 2664215023 is 3205124662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3205124662 = 2 ⋅1602562331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664215023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664210023) 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, 310765 + ... + 319222.

It is an arithmetic number, because the mean of its divisors is an integer number (666212310).

Almost surely, 2^2664215023 is an apocalyptic number.

2664215023 is a deficient number, since it is larger than the sum of its proper divisors (634217).

2664215023 is an equidigital number, since it uses as much as digits as its factorization.

2664215023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634216.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2664215023 is about 51616.0345532277. The cubic root of 2664215023 is about 1386.2974497065.

Adding to 2664215023 its reverse (3205124662), we get a palindrome (5869339685).

The spelling of 2664215023 in words is "two billion, six hundred sixty-four million, two hundred fifteen thousand, twenty-three".