66240622 has 16 divisors (see below), whose sum is σ = 115251840. Its totient is φ = 27964728.

The previous prime is 66240613. The next prime is 66240673. The reversal of 66240622 is 22604266.

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, 34372 + ... + 36247.

It is an arithmetic number, because the mean of its divisors is an integer number (7203240).

Almost surely, 2^66240622 is an apocalyptic number.

66240622 is a deficient number, since it is larger than the sum of its proper divisors (49011218).

66240622 is a wasteful number, since it uses less digits than its factorization.

66240622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70695.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 66240622 is about 8138.8341917009. The cubic root of 66240622 is about 404.6145232283.

Adding to 66240622 its reverse (22604266), we get a palindrome (88844888).

The spelling of 66240622 in words is "sixty-six million, two hundred forty thousand, six hundred twenty-two".