6666763254 has 16 divisors (see below), whose sum is σ = 13521323520. Its totient is φ = 2190954920.

The previous prime is 6666763247. The next prime is 6666763291. The reversal of 6666763254 is 4523676666.

It is a junction number, because it is equal to n+sod(n) for n = 6666763197 and 6666763206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7824414 + ... + 7825265.

It is an arithmetic number, because the mean of its divisors is an integer number (845082720).

Almost surely, 2^6666763254 is an apocalyptic number.

6666763254 is an abundant number, since it is smaller than the sum of its proper divisors (6854560266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6666763254 is a wasteful number, since it uses less digits than its factorization.

6666763254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15649755.

The product of its digits is 6531840, while the sum is 51.

The square root of 6666763254 is about 81650.2495648360. The cubic root of 6666763254 is about 1882.0811469342.

It can be divided in two parts, 66667 and 63254, that added together give a palindrome (129921).

The spelling of 6666763254 in words is "six billion, six hundred sixty-six million, seven hundred sixty-three thousand, two hundred fifty-four".