162912171948 has 24 divisors (see below), whose sum is σ = 380172695280. Its totient is φ = 54297729600.

The previous prime is 162912171937. The next prime is 162912171949. The reversal of 162912171948 is 849171219261.

It is a super-2 number, since 2×162912171948² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 162912171948.

It is not an unprimeable number, because it can be changed into a prime (162912171949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683103 + ... + 890198.

It is an arithmetic number, because the mean of its divisors is an integer number (15840528970).

Almost surely, 2^162912171948 is an apocalyptic number.

It is an amenable number.

162912171948 is an abundant number, since it is smaller than the sum of its proper divisors (217260523332).

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

162912171948 is a wasteful number, since it uses less digits than its factorization.

162912171948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581937 (or 1581935 counting only the distinct ones).

The product of its digits is 435456, while the sum is 51.

The spelling of 162912171948 in words is "one hundred sixty-two billion, nine hundred twelve million, one hundred seventy-one thousand, nine hundred forty-eight".