866325542 has 16 divisors (see below), whose sum is σ = 1376723952. Its totient is φ = 407447040.

The previous prime is 866325541. The next prime is 866325553. The reversal of 866325542 is 245523668.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 866325542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866325541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61742 + ... + 74462.

It is an arithmetic number, because the mean of its divisors is an integer number (86045247).

Almost surely, 2^866325542 is an apocalyptic number.

866325542 is a deficient number, since it is larger than the sum of its proper divisors (510398410).

866325542 is a wasteful number, since it uses less digits than its factorization.

866325542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14743.

The product of its digits is 345600, while the sum is 41.

The square root of 866325542 is about 29433.4086031503. The cubic root of 866325542 is about 953.2943952288.

The spelling of 866325542 in words is "eight hundred sixty-six million, three hundred twenty-five thousand, five hundred forty-two".