25040351066 has 8 divisors (see below), whose sum is σ = 39537396480. Its totient is φ = 11861218908.

The previous prime is 25040351041. The next prime is 25040351101. The reversal of 25040351066 is 66015304052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329478266 + ... + 329478341.

It is an arithmetic number, because the mean of its divisors is an integer number (4942174560).

Almost surely, 2^25040351066 is an apocalyptic number.

25040351066 is a deficient number, since it is larger than the sum of its proper divisors (14497045414).

25040351066 is a wasteful number, since it uses less digits than its factorization.

25040351066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658956628.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 25040351066 in words is "twenty-five billion, forty million, three hundred fifty-one thousand, sixty-six".