165012750015 has 16 divisors (see below), whose sum is σ = 265024286208. Its totient is φ = 87672171296.

The previous prime is 165012749929. The next prime is 165012750053. The reversal of 165012750015 is 510057210561.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 165012750015 - 2¹⁶ = 165012684479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20910219 + ... + 20918108.

It is an arithmetic number, because the mean of its divisors is an integer number (16564017888).

Almost surely, 2^165012750015 is an apocalyptic number.

165012750015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165012750015 is a deficient number, since it is larger than the sum of its proper divisors (100011536193).

165012750015 is a wasteful number, since it uses less digits than its factorization.

165012750015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41828598.

The product of its (nonzero) digits is 10500, while the sum is 33.

Adding to 165012750015 its reverse (510057210561), we get a palindrome (675069960576).

The spelling of 165012750015 in words is "one hundred sixty-five billion, twelve million, seven hundred fifty thousand, fifteen".