7405552666 has 8 divisors (see below), whose sum is σ = 11160975744. Its totient is φ = 3685227420.

The previous prime is 7405552663. The next prime is 7405552703. The reversal of 7405552666 is 6662555047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7405552663) 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, 8773930 + ... + 8774773.

It is an arithmetic number, because the mean of its divisors is an integer number (1395121968).

Almost surely, 2^7405552666 is an apocalyptic number.

7405552666 is a deficient number, since it is larger than the sum of its proper divisors (3755423078).

7405552666 is a wasteful number, since it uses less digits than its factorization.

7405552666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17548916.

The product of its (nonzero) digits is 1512000, while the sum is 46.

The square root of 7405552666 is about 86055.5208339360. The cubic root of 7405552666 is about 1949.1824463240.

The spelling of 7405552666 in words is "seven billion, four hundred five million, five hundred fifty-two thousand, six hundred sixty-six".