162278388164 has 24 divisors (see below), whose sum is σ = 287313528600. Its totient is φ = 80189669120.

The previous prime is 162278388131. The next prime is 162278388211. The reversal of 162278388164 is 461883872261.

It can be written as a sum of positive squares in 4 ways, for example, as 57307572100 + 104970816064 = 239390^2 + 323992^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 655742 + ... + 868650.

It is an arithmetic number, because the mean of its divisors is an integer number (11971397025).

Almost surely, 2^162278388164 is an apocalyptic number.

It is an amenable number.

162278388164 is a deficient number, since it is larger than the sum of its proper divisors (125035140436).

162278388164 is a wasteful number, since it uses less digits than its factorization.

162278388164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215143 (or 215141 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The spelling of 162278388164 in words is "one hundred sixty-two billion, two hundred seventy-eight million, three hundred eighty-eight thousand, one hundred sixty-four".