162645984 has 72 divisors (see below), whose sum is σ = 469483560. Its totient is φ = 53399808.

The previous prime is 162645983. The next prime is 162646009. The reversal of 162645984 is 489546261.

162645984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×162645984² = 52907432222656512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162645983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15082 + ... + 23510.

It is an arithmetic number, because the mean of its divisors is an integer number (6520605).

Almost surely, 2^162645984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162645984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234741780).

162645984 is an abundant number, since it is smaller than the sum of its proper divisors (306837576).

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

162645984 is a wasteful number, since it uses less digits than its factorization.

162645984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8512 (or 8501 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 162645984 is about 12753.2734621351. The cubic root of 162645984 is about 545.8598037989.

The spelling of 162645984 in words is "one hundred sixty-two million, six hundred forty-five thousand, nine hundred eighty-four".