66124242 has 32 divisors (see below), whose sum is σ = 147230400. Its totient is φ = 21998304.

The previous prime is 66124229. The next prime is 66124277. The reversal of 66124242 is 24242166.

66124242 is a `hidden beast` number, since 6 + 612 + 4 + 2 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39078 + ... + 40734.

It is an arithmetic number, because the mean of its divisors is an integer number (4600950).

Almost surely, 2^66124242 is an apocalyptic number.

66124242 is an abundant number, since it is smaller than the sum of its proper divisors (81106158).

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

66124242 is a wasteful number, since it uses less digits than its factorization.

66124242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2401 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 66124242 is about 8131.6813759517. The cubic root of 66124242 is about 404.3774247980.

It can be divided in two parts, 66124 and 242, that added together give a palindrome (66366).

The spelling of 66124242 in words is "sixty-six million, one hundred twenty-four thousand, two hundred forty-two".