165215132455316 has 24 divisors (see below), whose sum is σ = 301716517058880. Its totient is φ = 79010873263872.

The previous prime is 165215132455279. The next prime is 165215132455343. The reversal of 165215132455316 is 613554231512561.

It is a super-2 number, since 2×165215132455316² (a number of 29 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, 56051261 + ... + 58925156.

It is an arithmetic number, because the mean of its divisors is an integer number (12571521544120).

Almost surely, 2^{165215132455316} is an apocalyptic number.

It is an amenable number.

165215132455316 is a deficient number, since it is larger than the sum of its proper divisors (136501384603564).

165215132455316 is a wasteful number, since it uses less digits than its factorization.

165215132455316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114992063 (or 114992061 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 50.

Adding to 165215132455316 its reverse (613554231512561), we get a palindrome (778769363967877).

The spelling of 165215132455316 in words is "one hundred sixty-five trillion, two hundred fifteen billion, one hundred thirty-two million, four hundred fifty-five thousand, three hundred sixteen".