163417390140 has 96 divisors (see below), whose sum is σ = 470561039424. Its totient is φ = 42343741440.

The previous prime is 163417390133. The next prime is 163417390141. The reversal of 163417390140 is 41093714361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163417390141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1631920 + ... + 1729160.

It is an arithmetic number, because the mean of its divisors is an integer number (4901677494).

Almost surely, 2^163417390140 is an apocalyptic number.

163417390140 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 163417390140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235280519712).

163417390140 is an abundant number, since it is smaller than the sum of its proper divisors (307143649284).

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

163417390140 is a wasteful number, since it uses less digits than its factorization.

163417390140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98047 (or 98045 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 163417390140 in words is "one hundred sixty-three billion, four hundred seventeen million, three hundred ninety thousand, one hundred forty".