88161729516 has 144 divisors (see below), whose sum is σ = 257029194240. Its totient is φ = 24958644480.

The previous prime is 88161729499. The next prime is 88161729521. The reversal of 88161729516 is 61592716188.

It is a happy number.

88161729516 is a `hidden beast` number, since 8 + 8 + 1 + 617 + 2 + 9 + 5 + 16 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13926640 + ... + 13932968.

It is an arithmetic number, because the mean of its divisors is an integer number (1784924960).

Almost surely, 2^88161729516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88161729516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128514597120).

88161729516 is an abundant number, since it is smaller than the sum of its proper divisors (168867464724).

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

88161729516 is a wasteful number, since it uses less digits than its factorization.

88161729516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844 (or 6839 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The spelling of 88161729516 in words is "eighty-eight billion, one hundred sixty-one million, seven hundred twenty-nine thousand, five hundred sixteen".