165151634432545 has 8 divisors (see below), whose sum is σ = 199742449204224. Its totient is φ = 131080982289264.

The previous prime is 165151634432527. The next prime is 165151634432563. The reversal of 165151634432545 is 545234436151561.

It is an interprime number because it is at equal distance from previous prime (165151634432527) and next prime (165151634432563).

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 165151634432545 - 2⁵ = 165151634432513 is a prime.

It is a Duffinian 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, 130040656399 + ... + 130040657668.

It is an arithmetic number, because the mean of its divisors is an integer number (24967806150528).

Almost surely, 2^{165151634432545} is an apocalyptic number.

It is an amenable number.

165151634432545 is a deficient number, since it is larger than the sum of its proper divisors (34590814771679).

165151634432545 is a wasteful number, since it uses less digits than its factorization.

165151634432545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260081314199.

The product of its digits is 25920000, while the sum is 55.

The spelling of 165151634432545 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, six hundred thirty-four million, four hundred thirty-two thousand, five hundred forty-five".