25106123164 has 12 divisors (see below), whose sum is σ = 44388661744. Its totient is φ = 12423648384.

The previous prime is 25106123083. The next prime is 25106123167. The reversal of 25106123164 is 46132160152.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25106123167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32352864 + ... + 32353639.

Almost surely, 2^25106123164 is an apocalyptic number.

It is an amenable number.

25106123164 is a deficient number, since it is larger than the sum of its proper divisors (19282538580).

25106123164 is a wasteful number, since it uses less digits than its factorization.

25106123164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64706604 (or 64706602 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 25106123164 in words is "twenty-five billion, one hundred six million, one hundred twenty-three thousand, one hundred sixty-four".