6667141640 has 32 divisors (see below), whose sum is σ = 15006337560. Its totient is φ = 2665920000.

The previous prime is 6667141627. The next prime is 6667141669. The reversal of 6667141640 is 461417666.

It can be written as a sum of positive squares in 4 ways, for example, as 3767749924 + 2899391716 = 61382^2 + 53846^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92270 + ... + 147810.

Almost surely, 2^6667141640 is an apocalyptic number.

It is an amenable number.

6667141640 is an abundant number, since it is smaller than the sum of its proper divisors (8339195920).

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

6667141640 is a wasteful number, since it uses less digits than its factorization.

6667141640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58553 (or 58549 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 6667141640 is about 81652.5666467381. The cubic root of 6667141640 is about 1882.1167534026.

The spelling of 6667141640 in words is "six billion, six hundred sixty-seven million, one hundred forty-one thousand, six hundred forty".