66231045 has 24 divisors (see below), whose sum is σ = 115245312. Its totient is φ = 35186400.

The previous prime is 66231043. The next prime is 66231047. The reversal of 66231045 is 54013266.

It is an interprime number because it is at equal distance from previous prime (66231043) and next prime (66231047).

It is not a de Polignac number, because 66231045 - 2¹ = 66231043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66231043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9480 + ... + 14910.

It is an arithmetic number, because the mean of its divisors is an integer number (4801888).

Almost surely, 2^66231045 is an apocalyptic number.

It is an amenable number.

66231045 is a deficient number, since it is larger than the sum of its proper divisors (49014267).

66231045 is a wasteful number, since it uses less digits than its factorization.

66231045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713 (or 5710 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 66231045 is about 8138.2458183567. The cubic root of 66231045 is about 404.5950227067.

The spelling of 66231045 in words is "sixty-six million, two hundred thirty-one thousand, forty-five".