163010640 has 120 divisors (see below), whose sum is σ = 547331040. Its totient is φ = 40115712.

The previous prime is 163010611. The next prime is 163010657. The reversal of 163010640 is 46010361.

163010640 = T₂₂₀₇ + T₂₂₀₈ + ... + T₂₂₇₁.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38551 + ... + 42569.

It is an arithmetic number, because the mean of its divisors is an integer number (4561092).

Almost surely, 2^163010640 is an apocalyptic number.

163010640 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 163010640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273665520).

163010640 is an abundant number, since it is smaller than the sum of its proper divisors (384320400).

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

163010640 is a wasteful number, since it uses less digits than its factorization.

163010640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061 (or 4042 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 163010640 is about 12767.5620225633. The cubic root of 163010640 is about 546.2674426755.

The spelling of 163010640 in words is "one hundred sixty-three million, ten thousand, six hundred forty".