165387938926 has 8 divisors (see below), whose sum is σ = 283522181040. Its totient is φ = 70880545248.

The previous prime is 165387938887. The next prime is 165387939007. The reversal of 165387938926 is 629839783561.

165387938926 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×165387938926³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5906712091 + ... + 5906712118.

It is an arithmetic number, because the mean of its divisors is an integer number (35440272630).

Almost surely, 2^165387938926 is an apocalyptic number.

165387938926 is a deficient number, since it is larger than the sum of its proper divisors (118134242114).

165387938926 is a wasteful number, since it uses less digits than its factorization.

165387938926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11813424218.

The product of its digits is 117573120, while the sum is 67.

The spelling of 165387938926 in words is "one hundred sixty-five billion, three hundred eighty-seven million, nine hundred thirty-eight thousand, nine hundred twenty-six".