109616632398 has 160 divisors (see below), whose sum is σ = 318216138240. Its totient is φ = 27388238400.

The previous prime is 109616632343. The next prime is 109616632399. The reversal of 109616632398 is 893236616901.

109616632398 is a `hidden beast` number, since 1 + 0 + 96 + 166 + 3 + 2 + 398 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109616632399) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 84423 + ... + 475773.

It is an arithmetic number, because the mean of its divisors is an integer number (1988850864).

Almost surely, 2^109616632398 is an apocalyptic number.

109616632398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109616632398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159108069120).

109616632398 is an abundant number, since it is smaller than the sum of its proper divisors (208599505842).

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

109616632398 is a wasteful number, since it uses less digits than its factorization.

109616632398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391404 (or 391395 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 109616632398 in words is "one hundred nine billion, six hundred sixteen million, six hundred thirty-two thousand, three hundred ninety-eight".