161055000000648 has 256 divisors, whose sum is σ = 503812402329600. Its totient is φ = 47299293169920.

The previous prime is 161055000000613. The next prime is 161055000000679. The reversal of 161055000000648 is 846000000550161.

161055000000648 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 5 + 5 + 0 + 0 + 0 + 0 + 0 + 0 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 27490783 + ... + 32830673.

It is an arithmetic number, because the mean of its divisors is an integer number (1968017196600).

Almost surely, 2^{161055000000648} is an apocalyptic number.

161055000000648 is a gapful number since it is divisible by the number (18) 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 161055000000648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251906201164800).

161055000000648 is an abundant number, since it is smaller than the sum of its proper divisors (342757402328952).

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

161055000000648 is a wasteful number, since it uses less digits than its factorization.

161055000000648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340409 (or 5340399 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 161055000000648 in words is "one hundred sixty-one trillion, fifty-five billion, six hundred forty-eight", and thus it is an aban number.