162571221007 has 16 divisors (see below), whose sum is σ = 186080527360. Its totient is φ = 140787256032.

The previous prime is 162571220927. The next prime is 162571221013. The reversal of 162571221007 is 700122175261.

It is a cyclic number.

It is not a de Polignac number, because 162571221007 - 2²⁷ = 162437003279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162571221077) 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, 3169623 + ... + 3220504.

It is an arithmetic number, because the mean of its divisors is an integer number (11630032960).

Almost surely, 2^162571221007 is an apocalyptic number.

162571221007 is a deficient number, since it is larger than the sum of its proper divisors (23509306353).

162571221007 is a wasteful number, since it uses less digits than its factorization.

162571221007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390262.

The product of its (nonzero) digits is 11760, while the sum is 34.

Adding to 162571221007 its reverse (700122175261), we get a palindrome (862693396268).

The spelling of 162571221007 in words is "one hundred sixty-two billion, five hundred seventy-one million, two hundred twenty-one thousand, seven".