165387199340 has 48 divisors (see below), whose sum is σ = 379314641664. Its totient is φ = 60072926400.

The previous prime is 165387199339. The next prime is 165387199349. The reversal of 165387199340 is 43991783561.

It is not an unprimeable number, because it can be changed into a prime (165387199349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 228626 + ... + 618905.

It is an arithmetic number, because the mean of its divisors is an integer number (7902388368).

Almost surely, 2^165387199340 is an apocalyptic number.

165387199340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165387199340 is an abundant number, since it is smaller than the sum of its proper divisors (213927442324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165387199340 is a wasteful number, since it uses less digits than its factorization.

165387199340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848438 (or 848436 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 165387199340 in words is "one hundred sixty-five billion, three hundred eighty-seven million, one hundred ninety-nine thousand, three hundred forty".