161488702480 has 320 divisors, whose sum is σ = 466298726400. Its totient is φ = 50750226432.

The previous prime is 161488702477. The next prime is 161488702513. The reversal of 161488702480 is 84207884161.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104252746 + ... + 104254294.

It is an arithmetic number, because the mean of its divisors is an integer number (1457183520).

Almost surely, 2^161488702480 is an apocalyptic number.

161488702480 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 161488702480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233149363200).

161488702480 is an abundant number, since it is smaller than the sum of its proper divisors (304810023920).

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

161488702480 is a wasteful number, since it uses less digits than its factorization.

161488702480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The spelling of 161488702480 in words is "one hundred sixty-one billion, four hundred eighty-eight million, seven hundred two thousand, four hundred eighty".