100165020 has 96 divisors (see below), whose sum is σ = 298867968. Its totient is φ = 24978432.

The previous prime is 100165007. The next prime is 100165049. The reversal of 100165020 is 20561001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288487 + ... + 288833.

It is an arithmetic number, because the mean of its divisors is an integer number (3113208).

Almost surely, 2^100165020 is an apocalyptic number.

100165020 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 100165020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149433984).

100165020 is an abundant number, since it is smaller than the sum of its proper divisors (198702948).

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

100165020 is a wasteful number, since it uses less digits than its factorization.

100165020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 100165020 is about 10008.2475988557. The cubic root of 100165020 is about 464.4140613776.

The spelling of 100165020 in words is "one hundred million, one hundred sixty-five thousand, twenty".