100066520 has 32 divisors (see below), whose sum is σ = 225454320. Its totient is φ = 39972480.

The previous prime is 100066511. The next prime is 100066529. The reversal of 100066520 is 25660001.

It is an interprime number because it is at equal distance from previous prime (100066511) and next prime (100066529).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100066492 and 100066501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100066529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42494 + ... + 44786.

Almost surely, 2^100066520 is an apocalyptic number.

100066520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100066520 is an abundant number, since it is smaller than the sum of its proper divisors (125387800).

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

100066520 is a wasteful number, since it uses less digits than its factorization.

100066520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395 (or 3391 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 100066520 is about 10003.3254470701. The cubic root of 100066520 is about 464.2617800454.

The spelling of 100066520 in words is "one hundred million, sixty-six thousand, five hundred twenty".