66020124 has 24 divisors (see below), whose sum is σ = 159359760. Its totient is φ = 21247744.

The previous prime is 66020081. The next prime is 66020147. The reversal of 66020124 is 42102066.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66020124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94509 + ... + 95204.

It is an arithmetic number, because the mean of its divisors is an integer number (6639990).

Almost surely, 2^66020124 is an apocalyptic number.

It is an amenable number.

66020124 is an abundant number, since it is smaller than the sum of its proper divisors (93339636).

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

66020124 is a wasteful number, since it uses less digits than its factorization.

66020124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189749 (or 189747 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 66020124 is about 8125.2768568216. The cubic root of 66020124 is about 404.1650715824.

The spelling of 66020124 in words is "sixty-six million, twenty thousand, one hundred twenty-four".