161498239344000 has 7168 divisors, whose sum is σ = 740507350302720. Its totient is φ = 34613526528000.

The previous prime is 161498239343999. The next prime is 161498239344019. The reversal of 161498239344000 is 443932894161.

161498239344000 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 98 + 23 + 93 + 440 + 0 + 0 = 666.

It is a super-2 number, since 2×161498239344000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 895 ways as a sum of consecutive naturals, for example, 3436132751977 + ... + 3436132752023.

It is an arithmetic number, because the mean of its divisors is an integer number (103307387040).

Almost surely, 2^{161498239344000} is an apocalyptic number.

161498239344000 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 161498239344000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370253675151360).

161498239344000 is an abundant number, since it is smaller than the sum of its proper divisors (579009110958720).

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

161498239344000 is a wasteful number, since it uses less digits than its factorization.

161498239344000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 161498239344000 in words is "one hundred sixty-one trillion, four hundred ninety-eight billion, two hundred thirty-nine million, three hundred forty-four thousand".