66376245 has 32 divisors (see below), whose sum is σ = 121105152. Its totient is φ = 30753792.

The previous prime is 66376223. The next prime is 66376249. The reversal of 66376245 is 54267366.

It is not a de Polignac number, because 66376245 - 2⁵ = 66376213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66376249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6697 + ... + 13326.

It is an arithmetic number, because the mean of its divisors is an integer number (3784536).

Almost surely, 2^66376245 is an apocalyptic number.

66376245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66376245 is a deficient number, since it is larger than the sum of its proper divisors (54728907).

66376245 is a wasteful number, since it uses less digits than its factorization.

66376245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20061.

The product of its digits is 181440, while the sum is 39.

The square root of 66376245 is about 8147.1617757352. The cubic root of 66376245 is about 404.8904748798.

The spelling of 66376245 in words is "sixty-six million, three hundred seventy-six thousand, two hundred forty-five".