165290055646 has 8 divisors (see below), whose sum is σ = 248649594840. Its totient is φ = 82406857368.

The previous prime is 165290055643. The next prime is 165290055673. The reversal of 165290055646 is 646550092561.

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

It is a self number, because there is not a number n which added to its sum of digits gives 165290055646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165290055643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119084361 + ... + 119085748.

It is an arithmetic number, because the mean of its divisors is an integer number (31081199355).

Almost surely, 2^165290055646 is an apocalyptic number.

165290055646 is a deficient number, since it is larger than the sum of its proper divisors (83359539194).

165290055646 is a wasteful number, since it uses less digits than its factorization.

165290055646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238170458.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 165290055646 in words is "one hundred sixty-five billion, two hundred ninety million, fifty-five thousand, six hundred forty-six".