25168411616 has 12 divisors (see below), whose sum is σ = 49550310432. Its totient is φ = 12584205792.

The previous prime is 25168411603. The next prime is 25168411637. The reversal of 25168411616 is 61611486152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393256400 + ... + 393256463.

It is an arithmetic number, because the mean of its divisors is an integer number (4129192536).

Almost surely, 2^25168411616 is an apocalyptic number.

It is an amenable number.

25168411616 is a deficient number, since it is larger than the sum of its proper divisors (24381898816).

25168411616 is an equidigital number, since it uses as much as digits as its factorization.

25168411616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786512873 (or 786512865 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

Adding to 25168411616 its reverse (61611486152), we get a palindrome (86779897768).

The spelling of 25168411616 in words is "twenty-five billion, one hundred sixty-eight million, four hundred eleven thousand, six hundred sixteen".