164245465987 has 16 divisors (see below), whose sum is σ = 166146664320. Its totient is φ = 162352899072.

The previous prime is 164245465913. The next prime is 164245465999. The reversal of 164245465987 is 789564542461.

It is a cyclic number.

It is not a de Polignac number, because 164245465987 - 2²³ = 164237077379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164245468987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110009613 + ... + 110011105.

It is an arithmetic number, because the mean of its divisors is an integer number (10384166520).

Almost surely, 2^164245465987 is an apocalyptic number.

164245465987 is a deficient number, since it is larger than the sum of its proper divisors (1901198333).

164245465987 is a wasteful number, since it uses less digits than its factorization.

164245465987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582.

The product of its digits is 58060800, while the sum is 61.

The spelling of 164245465987 in words is "one hundred sixty-four billion, two hundred forty-five million, four hundred sixty-five thousand, nine hundred eighty-seven".