25122406066 has 8 divisors (see below), whose sum is σ = 38485388160. Its totient is φ = 12293943348.

The previous prime is 25122406061. The next prime is 25122406097. The reversal of 25122406066 is 66060422152.

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

It is a super-2 number, since 2×25122406066² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25122406061) 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, 133629726 + ... + 133629913.

It is an arithmetic number, because the mean of its divisors is an integer number (4810673520).

Almost surely, 2^25122406066 is an apocalyptic number.

25122406066 is a deficient number, since it is larger than the sum of its proper divisors (13362982094).

25122406066 is a wasteful number, since it uses less digits than its factorization.

25122406066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267259688.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 25122406066 in words is "twenty-five billion, one hundred twenty-two million, four hundred six thousand, sixty-six".