163280620 has 12 divisors (see below), whose sum is σ = 342889344. Its totient is φ = 65312240.

The previous prime is 163280603. The next prime is 163280629. The reversal of 163280620 is 26082361.

It is not an unprimeable number, because it can be changed into a prime (163280629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4081996 + ... + 4082035.

It is an arithmetic number, because the mean of its divisors is an integer number (28574112).

Almost surely, 2^163280620 is an apocalyptic number.

163280620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163280620 is an abundant number, since it is smaller than the sum of its proper divisors (179608724).

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

163280620 is a wasteful number, since it uses less digits than its factorization.

163280620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164040 (or 8164038 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 163280620 is about 12778.1305361935. The cubic root of 163280620 is about 546.5688543686.

The spelling of 163280620 in words is "one hundred sixty-three million, two hundred eighty thousand, six hundred twenty".