165015010571545 has 16 divisors (see below), whose sum is σ = 202231656264960. Its totient is φ = 129202926470784.

The previous prime is 165015010571527. The next prime is 165015010571611. The reversal of 165015010571545 is 545175010510561.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 165015010571545 - 2⁵ = 165015010571513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165015010571495 and 165015010571504.

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, 157549141 + ... + 158593069.

It is an arithmetic number, because the mean of its divisors is an integer number (12639478516560).

Almost surely, 2^{165015010571545} is an apocalyptic number.

It is an amenable number.

165015010571545 is a deficient number, since it is larger than the sum of its proper divisors (37216645693415).

165015010571545 is a wasteful number, since it uses less digits than its factorization.

165015010571545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716624.

The product of its (nonzero) digits is 525000, while the sum is 46.

The spelling of 165015010571545 in words is "one hundred sixty-five trillion, fifteen billion, ten million, five hundred seventy-one thousand, five hundred forty-five".