100660161320 has 128 divisors (see below), whose sum is σ = 246194380800. Its totient is φ = 36894867456.

The previous prime is 100660161307. The next prime is 100660161323. The reversal of 100660161320 is 23161066001.

It is a self number, because there is not a number n which added to its sum of digits gives 100660161320.

It is not an unprimeable number, because it can be changed into a prime (100660161323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6160121 + ... + 6176439.

It is an arithmetic number, because the mean of its divisors is an integer number (1923393600).

Almost surely, 2^100660161320 is an apocalyptic number.

100660161320 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 100660161320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123097190400).

100660161320 is an abundant number, since it is smaller than the sum of its proper divisors (145534219480).

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

100660161320 is a wasteful number, since it uses less digits than its factorization.

100660161320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16587 (or 16583 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 100660161320 in words is "one hundred billion, six hundred sixty million, one hundred sixty-one thousand, three hundred twenty".