165120600069649 has 32 divisors (see below), whose sum is σ = 192141700286976. Its totient is φ = 138966019960320.

The previous prime is 165120600069631. The next prime is 165120600069653. The reversal of 165120600069649 is 946960006021561.

It is not a de Polignac number, because 165120600069649 - 2¹⁹ = 165120599545361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165120600069649.

It is not an unprimeable number, because it can be changed into a prime (165120600079649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 566778429 + ... + 567069685.

It is an arithmetic number, because the mean of its divisors is an integer number (6004428133968).

Almost surely, 2^{165120600069649} is an apocalyptic number.

It is an amenable number.

165120600069649 is a deficient number, since it is larger than the sum of its proper divisors (27021100217327).

165120600069649 is a wasteful number, since it uses less digits than its factorization.

165120600069649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293665.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 165120600069649 in words is "one hundred sixty-five trillion, one hundred twenty billion, six hundred million, sixty-nine thousand, six hundred forty-nine".