161135552141010 has 896 divisors, whose sum is σ = 469774739508480. Its totient is φ = 39693908072448.

The previous prime is 161135552141009. The next prime is 161135552141023. The reversal of 161135552141010 is 10141255531161.

161135552141010 is a `hidden beast` number, since 1 + 6 + 113 + 5 + 5 + 521 + 4 + 1 + 0 + 10 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 183734950692 + ... + 183734951568.

It is an arithmetic number, because the mean of its divisors is an integer number (524302164630).

Almost surely, 2^{161135552141010} is an apocalyptic number.

161135552141010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161135552141010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234887369754240).

161135552141010 is an abundant number, since it is smaller than the sum of its proper divisors (308639187367470).

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

161135552141010 is a wasteful number, since it uses less digits than its factorization.

161135552141010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The spelling of 161135552141010 in words is "one hundred sixty-one trillion, one hundred thirty-five billion, five hundred fifty-two million, one hundred forty-one thousand, ten".