165212532543513 has 16 divisors (see below), whose sum is σ = 271118002123136. Its totient is φ = 87145072110720.

The previous prime is 165212532543473. The next prime is 165212532543529. The reversal of 165212532543513 is 315345235212561.

It is not a de Polignac number, because 165212532543513 - 2⁸ = 165212532543257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165212532543613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302587055668 + ... + 302587056213.

It is an arithmetic number, because the mean of its divisors is an integer number (16944875132696).

Almost surely, 2^{165212532543513} is an apocalyptic number.

165212532543513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165212532543513 is a deficient number, since it is larger than the sum of its proper divisors (105905469579623).

165212532543513 is a wasteful number, since it uses less digits than its factorization.

165212532543513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605174111904.

The product of its digits is 3240000, while the sum is 48.

The spelling of 165212532543513 in words is "one hundred sixty-five trillion, two hundred twelve billion, five hundred thirty-two million, five hundred forty-three thousand, five hundred thirteen".