165243604440532 has 12 divisors (see below), whose sum is σ = 289481668187040. Its totient is φ = 82534556387096.

The previous prime is 165243604440517. The next prime is 165243604440547. The reversal of 165243604440532 is 235044406342561.

It is an interprime number because it is at equal distance from previous prime (165243604440517) and next prime (165243604440547).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21811454032 + ... + 21811461607.

It is an arithmetic number, because the mean of its divisors is an integer number (24123472348920).

Almost surely, 2^{165243604440532} is an apocalyptic number.

It is an amenable number.

165243604440532 is a deficient number, since it is larger than the sum of its proper divisors (124238063746508).

165243604440532 is a wasteful number, since it uses less digits than its factorization.

165243604440532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43622916590 (or 43622916588 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 165243604440532 in words is "one hundred sixty-five trillion, two hundred forty-three billion, six hundred four million, four hundred forty thousand, five hundred thirty-two".