163071472740 has 96 divisors (see below), whose sum is σ = 499133021184. Its totient is φ = 39451224960.

The previous prime is 163071472727. The next prime is 163071472747. The reversal of 163071472740 is 47274170361.

It is a happy number.

163071472740 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163071472692 and 163071472701.

It is not an unprimeable number, because it can be changed into a prime (163071472747) 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, 67747 + ... + 575093.

It is an arithmetic number, because the mean of its divisors is an integer number (5199302304).

Almost surely, 2^163071472740 is an apocalyptic number.

163071472740 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 163071472740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249566510592).

163071472740 is an abundant number, since it is smaller than the sum of its proper divisors (336061548444).

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

163071472740 is a wasteful number, since it uses less digits than its factorization.

163071472740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507857 (or 507855 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 163071472740 in words is "one hundred sixty-three billion, seventy-one million, four hundred seventy-two thousand, seven hundred forty".