66536242 has 16 divisors (see below), whose sum is σ = 101314080. Its totient is φ = 32768928.

The previous prime is 66536227. The next prime is 66536243. The reversal of 66536242 is 24263566.

It is a junction number, because it is equal to n+sod(n) for n = 66536198 and 66536207.

It is not an unprimeable number, because it can be changed into a prime (66536243) 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, 37213 + ... + 38959.

It is an arithmetic number, because the mean of its divisors is an integer number (6332130).

Almost surely, 2^66536242 is an apocalyptic number.

66536242 is a deficient number, since it is larger than the sum of its proper divisors (34777838).

66536242 is a wasteful number, since it uses less digits than its factorization.

66536242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025.

The product of its digits is 51840, while the sum is 34.

The square root of 66536242 is about 8156.9750520643. The cubic root of 66536242 is about 405.2155373582.

The spelling of 66536242 in words is "sixty-six million, five hundred thirty-six thousand, two hundred forty-two".