165206342512407 has 32 divisors (see below), whose sum is σ = 254352894308352. Its totient is φ = 93425025014784.

The previous prime is 165206342512397. The next prime is 165206342512423. The reversal of 165206342512407 is 704215243602561.

It is a happy number.

It is not a de Polignac number, because 165206342512407 - 2⁸ = 165206342512151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165206342512457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33280378 + ... + 37920920.

It is an arithmetic number, because the mean of its divisors is an integer number (7948527947136).

Almost surely, 2^{165206342512407} is an apocalyptic number.

165206342512407 is a deficient number, since it is larger than the sum of its proper divisors (89146551795945).

165206342512407 is a wasteful number, since it uses less digits than its factorization.

165206342512407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658127.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 165206342512407 in words is "one hundred sixty-five trillion, two hundred six billion, three hundred forty-two million, five hundred twelve thousand, four hundred seven".