2663254567 has 4 divisors (see below), whose sum is σ = 2803425880. Its totient is φ = 2523083256.

The previous prime is 2663254553. The next prime is 2663254591. The reversal of 2663254567 is 7654523662.

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

It is a cyclic number.

It is not a de Polignac number, because 2663254567 - 2²³ = 2654865959 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 (2663254667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70085628 + ... + 70085665.

It is an arithmetic number, because the mean of its divisors is an integer number (700856470).

Almost surely, 2^2663254567 is an apocalyptic number.

2663254567 is a deficient number, since it is larger than the sum of its proper divisors (140171313).

2663254567 is a wasteful number, since it uses less digits than its factorization.

2663254567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140171312.

The product of its digits is 1814400, while the sum is 46.

The square root of 2663254567 is about 51606.7298615210. The cubic root of 2663254567 is about 1386.1308418158.

The spelling of 2663254567 in words is "two billion, six hundred sixty-three million, two hundred fifty-four thousand, five hundred sixty-seven".