66346245 has 36 divisors (see below), whose sum is σ = 133780140. Its totient is φ = 30328704.

The previous prime is 66346219. The next prime is 66346249. The reversal of 66346245 is 54264366.

It can be written as a sum of positive squares in 2 ways, for example, as 28227969 + 38118276 = 5313^2 + 6174^2 .

It is not a de Polignac number, because 66346245 - 2⁵ = 66346213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66346249) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12840 + ... + 17249.

It is an arithmetic number, because the mean of its divisors is an integer number (3716115).

Almost surely, 2^66346245 is an apocalyptic number.

It is an amenable number.

66346245 is an abundant number, since it is smaller than the sum of its proper divisors (67433895).

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

66346245 is a wasteful number, since it uses less digits than its factorization.

66346245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30114 (or 30104 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 66346245 is about 8145.3204356858. The cubic root of 66346245 is about 404.8294663835.

The spelling of 66346245 in words is "sixty-six million, three hundred forty-six thousand, two hundred forty-five".