7390105666 has 36 divisors (see below), whose sum is σ = 12288899826. Its totient is φ = 3321303040.

The previous prime is 7390105661. The next prime is 7390105673. The reversal of 7390105666 is 6665010937.

It can be written as a sum of positive squares in 3 ways, for example, as 7028307225 + 361798441 = 83835^2 + 19021^2 .

It is a super-2 number, since 2×7390105666² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7390105661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11528706 + ... + 11529346.

Almost surely, 2^7390105666 is an apocalyptic number.

7390105666 is a deficient number, since it is larger than the sum of its proper divisors (4898794160).

7390105666 is an equidigital number, since it uses as much as digits as its factorization.

7390105666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 7390105666 is about 85965.7237857043. The cubic root of 7390105666 is about 1947.8262576471.

The spelling of 7390105666 in words is "seven billion, three hundred ninety million, one hundred five thousand, six hundred sixty-six".