25400101016 has 8 divisors (see below), whose sum is σ = 47625189420. Its totient is φ = 12700050504.

The previous prime is 25400100983. The next prime is 25400101021. The reversal of 25400101016 is 61010100452.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1587506306 + ... + 1587506321.

Almost surely, 2^25400101016 is an apocalyptic number.

It is an amenable number.

25400101016 is a deficient number, since it is larger than the sum of its proper divisors (22225088404).

25400101016 is a wasteful number, since it uses less digits than its factorization.

25400101016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175012633 (or 3175012629 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 25400101016 its reverse (61010100452), we get a palindrome (86410201468).

The spelling of 25400101016 in words is "twenty-five billion, four hundred million, one hundred one thousand, sixteen".