25623145116 has 36 divisors (see below), whose sum is σ = 64827394632. Its totient is φ = 8533429344.

The previous prime is 25623145109. The next prime is 25623145151. The reversal of 25623145116 is 61154132652.

25623145116 is a `hidden beast` number, since 2 + 5 + 623 + 14 + 5 + 1 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276471 + ... + 357326.

It is an arithmetic number, because the mean of its divisors is an integer number (1800760962).

Almost surely, 2^25623145116 is an apocalyptic number.

It is an amenable number.

25623145116 is an abundant number, since it is smaller than the sum of its proper divisors (39204249516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25623145116 is a wasteful number, since it uses less digits than its factorization.

25623145116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634930 (or 634925 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

Adding to 25623145116 its reverse (61154132652), we get a palindrome (86777277768).

The spelling of 25623145116 in words is "twenty-five billion, six hundred twenty-three million, one hundred forty-five thousand, one hundred sixteen".