101663400 has 96 divisors (see below), whose sum is σ = 333728640. Its totient is φ = 25512960.

The previous prime is 101663399. The next prime is 101663407. The reversal of 101663400 is 4366101.

It is not an unprimeable number, because it can be changed into a prime (101663407) 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 23 ways as a sum of consecutive naturals, for example, 5217 + ... + 15183.

It is an arithmetic number, because the mean of its divisors is an integer number (3476340).

Almost surely, 2^101663400 is an apocalyptic number.

101663400 is a gapful number since it is divisible by the number (10) 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 101663400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166864320).

101663400 is an abundant number, since it is smaller than the sum of its proper divisors (232065240).

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

101663400 is a wasteful number, since it uses less digits than its factorization.

101663400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003 (or 9994 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 101663400 is about 10082.8269845317. The cubic root of 101663400 is about 466.7183502849.

The spelling of 101663400 in words is "one hundred one million, six hundred sixty-three thousand, four hundred".