161337466560 has 224 divisors, whose sum is σ = 525709481472. Its totient is φ = 41896468480.

The previous prime is 161337466489. The next prime is 161337466597. The reversal of 161337466560 is 65664733161.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23100829 + ... + 23107811.

It is an arithmetic number, because the mean of its divisors is an integer number (2346917328).

Almost surely, 2^161337466560 is an apocalyptic number.

161337466560 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 161337466560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262854740736).

161337466560 is an abundant number, since it is smaller than the sum of its proper divisors (364372014912).

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

161337466560 is a wasteful number, since it uses less digits than its factorization.

161337466560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7631 (or 7621 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 161337466560 in words is "one hundred sixty-one billion, three hundred thirty-seven million, four hundred sixty-six thousand, five hundred sixty".