161466078533760 has 3840 divisors, whose sum is σ = 799626173702400. Its totient is φ = 30128817438720.

The previous prime is 161466078533741. The next prime is 161466078533813. The reversal of 161466078533760 is 67335870664161.

It is a happy number.

161466078533760 is a `hidden beast` number, since 1 + 6 + 1 + 466 + 0 + 7 + 85 + 3 + 37 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 24959971806 + ... + 24959978274.

It is an arithmetic number, because the mean of its divisors is an integer number (208235982735).

Almost surely, 2^{161466078533760} is an apocalyptic number.

161466078533760 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 161466078533760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399813086851200).

161466078533760 is an abundant number, since it is smaller than the sum of its proper divisors (638160095168640).

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

161466078533760 is a wasteful number, since it uses less digits than its factorization.

161466078533760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581 (or 6547 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 63.

The spelling of 161466078533760 in words is "one hundred sixty-one trillion, four hundred sixty-six billion, seventy-eight million, five hundred thirty-three thousand, seven hundred sixty".