71222016072162 has 64 divisors (see below), whose sum is σ = 152320293137664. Its totient is φ = 22122365798400.

The previous prime is 71222016072161. The next prime is 71222016072169. The reversal of 71222016072162 is 26127061022217.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71222016072162.

It is not an unprimeable number, because it can be changed into a prime (71222016072161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 598208523 + ... + 598327569.

It is an arithmetic number, because the mean of its divisors is an integer number (2380004580276).

Almost surely, 2^{71222016072162} is an apocalyptic number.

71222016072162 is an abundant number, since it is smaller than the sum of its proper divisors (81098277065502).

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

71222016072162 is a wasteful number, since it uses less digits than its factorization.

71222016072162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177243.

The product of its (nonzero) digits is 56448, while the sum is 39.

Adding to 71222016072162 its reverse (26127061022217), we get a palindrome (97349077094379).

The spelling of 71222016072162 in words is "seventy-one trillion, two hundred twenty-two billion, sixteen million, seventy-two thousand, one hundred sixty-two".