25146852160000 has 100 divisors (see below), whose sum is σ = 62785639681182. Its totient is φ = 10058740736000.

The previous prime is 25146852159991. The next prime is 25146852160009. The reversal of 25146852160000 is 6125864152.

It is an interprime number because it is at equal distance from previous prime (25146852159991) and next prime (25146852160009).

It can be written as a sum of positive squares in 5 ways, for example, as 60217233664 + 25086634926336 = 245392^2 + 5008656^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (25146852160009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38971957 + ... + 39611956.

Almost surely, 2^{25146852160000} is an apocalyptic number.

25146852160000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25146852160000 is an abundant number, since it is smaller than the sum of its proper divisors (37638787521182).

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

25146852160000 is an frugal number, since it uses more digits than its factorization.

25146852160000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78583951 (or 78583920 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 25146852160000 in words is "twenty-five trillion, one hundred forty-six billion, eight hundred fifty-two million, one hundred sixty thousand".