66372097 has 16 divisors (see below), whose sum is σ = 79315200. Its totient is φ = 54826240.

The previous prime is 66372041. The next prime is 66372101. The reversal of 66372097 is 79027366.

It is a de Polignac number, because none of the positive numbers 2^k-66372097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66372197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697 + ... + 11542.

It is an arithmetic number, because the mean of its divisors is an integer number (4957200).

Almost surely, 2^66372097 is an apocalyptic number.

It is an amenable number.

66372097 is a deficient number, since it is larger than the sum of its proper divisors (12943103).

66372097 is a wasteful number, since it uses less digits than its factorization.

66372097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12296.

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 66372097 is about 8146.9072045777. The cubic root of 66372097 is about 404.8820405337.

The spelling of 66372097 in words is "sixty-six million, three hundred seventy-two thousand, ninety-seven".