66522246 has 16 divisors (see below), whose sum is σ = 152050944. Its totient is φ = 19006344.

The previous prime is 66522229. The next prime is 66522257. The reversal of 66522246 is 64222566.

It is a Curzon number.

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, 791890 + ... + 791973.

It is an arithmetic number, because the mean of its divisors is an integer number (9503184).

Almost surely, 2^66522246 is an apocalyptic number.

66522246 is an abundant number, since it is smaller than the sum of its proper divisors (85528698).

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

66522246 is a wasteful number, since it uses less digits than its factorization.

66522246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583875.

The product of its digits is 34560, while the sum is 33.

The square root of 66522246 is about 8156.1170908711. The cubic root of 66522246 is about 405.1871227969.

The spelling of 66522246 in words is "sixty-six million, five hundred twenty-two thousand, two hundred forty-six".