161106369536 has 176 divisors, whose sum is σ = 372233030400. Its totient is φ = 68268883968.

The previous prime is 161106369499. The next prime is 161106369563. The reversal of 161106369536 is 635963601161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393902900 + ... + 393903308.

It is an arithmetic number, because the mean of its divisors is an integer number (2114960400).

Almost surely, 2^161106369536 is an apocalyptic number.

161106369536 is a gapful number since it is divisible by the number (16) 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 161106369536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186116515200).

161106369536 is an abundant number, since it is smaller than the sum of its proper divisors (211126660864).

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

161106369536 is a wasteful number, since it uses less digits than its factorization.

161106369536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 161106369536 in words is "one hundred sixty-one billion, one hundred six million, three hundred sixty-nine thousand, five hundred thirty-six".