162985680 has 240 divisors, whose sum is σ = 643458816. Its totient is φ = 36449280.

The previous prime is 162985679. The next prime is 162985699. The reversal of 162985680 is 86589261.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102169 + ... + 103751.

Almost surely, 2^162985680 is an apocalyptic number.

162985680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162985680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321729408).

162985680 is an abundant number, since it is smaller than the sum of its proper divisors (480473136).

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

162985680 is a wasteful number, since it uses less digits than its factorization.

162985680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 162985680 is about 12766.5845080037. The cubic root of 162985680 is about 546.2395599734.

The spelling of 162985680 in words is "one hundred sixty-two million, nine hundred eighty-five thousand, six hundred eighty".