161002630140 has 48 divisors (see below), whose sum is σ = 491789854080. Its totient is φ = 39030940480.

The previous prime is 161002630081. The next prime is 161002630153. The reversal of 161002630140 is 41036200161.

161002630140 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161002630140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121971030 + ... + 121972349.

It is an arithmetic number, because the mean of its divisors is an integer number (10245621960).

Almost surely, 2^161002630140 is an apocalyptic number.

161002630140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161002630140 is an abundant number, since it is smaller than the sum of its proper divisors (330787223940).

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

161002630140 is a wasteful number, since it uses less digits than its factorization.

161002630140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243943402 (or 243943400 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 161002630140 in words is "one hundred sixty-one billion, two million, six hundred thirty thousand, one hundred forty".