7421330165 has 8 divisors (see below), whose sum is σ = 8965366200. Its totient is φ = 5897217472.

The previous prime is 7421330153. The next prime is 7421330171. The reversal of 7421330165 is 5610331247.

It can be written as a sum of positive squares in 4 ways, for example, as 20857489 + 7400472676 = 4567^2 + 86026^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7421330165 - 2⁴ = 7421330149 is a prime.

It is a super-2 number, since 2×7421330165² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4980014 + ... + 4981503.

It is an arithmetic number, because the mean of its divisors is an integer number (1120670775).

Almost surely, 2^7421330165 is an apocalyptic number.

It is an amenable number.

7421330165 is a deficient number, since it is larger than the sum of its proper divisors (1544036035).

7421330165 is a wasteful number, since it uses less digits than its factorization.

7421330165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9961671.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 7421330165 is about 86147.1425237077. The cubic root of 7421330165 is about 1950.5657061303.

The spelling of 7421330165 in words is "seven billion, four hundred twenty-one million, three hundred thirty thousand, one hundred sixty-five".