100550660 has 96 divisors (see below), whose sum is σ = 257187840. Its totient is φ = 32254848.

The previous prime is 100550633. The next prime is 100550663. The reversal of 100550660 is 66055001.

It is a super-2 number, since 2×100550660² = 20220870452871200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100550663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273797 + ... + 274163.

It is an arithmetic number, because the mean of its divisors is an integer number (2679040).

Almost surely, 2^100550660 is an apocalyptic number.

100550660 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 100550660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128593920).

100550660 is an abundant number, since it is smaller than the sum of its proper divisors (156637180).

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

100550660 is a wasteful number, since it uses less digits than its factorization.

100550660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 100550660 is about 10027.4952006969. The cubic root of 100550660 is about 465.0093033942.

The spelling of 100550660 in words is "one hundred million, five hundred fifty thousand, six hundred sixty".