109663554 has 192 divisors, whose sum is σ = 320302080. Its totient is φ = 24105600.

The previous prime is 109663511. The next prime is 109663559. The reversal of 109663554 is 455366901.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109663559) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 3537519 + ... + 3537549.

It is an arithmetic number, because the mean of its divisors is an integer number (1668240).

Almost surely, 2^109663554 is an apocalyptic number.

109663554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109663554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160151040).

109663554 is an abundant number, since it is smaller than the sum of its proper divisors (210638526).

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

109663554 is a wasteful number, since it uses less digits than its factorization.

109663554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 109663554 is about 10472.0367646413. The cubic root of 109663554 is about 478.6529855892.

The spelling of 109663554 in words is "one hundred nine million, six hundred sixty-three thousand, five hundred fifty-four".