25720154150740 has 96 divisors (see below), whose sum is σ = 61985939549184. Its totient is φ = 8781562183680.

The previous prime is 25720154150689. The next prime is 25720154150807. The reversal of 25720154150740 is 4705145102752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130544944 + ... + 130741816.

It is an arithmetic number, because the mean of its divisors is an integer number (645686870304).

Almost surely, 2^{25720154150740} is an apocalyptic number.

25720154150740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25720154150740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30992969774592).

25720154150740 is an abundant number, since it is smaller than the sum of its proper divisors (36265785398444).

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

25720154150740 is a wasteful number, since it uses less digits than its factorization.

25720154150740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200777 (or 200775 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The spelling of 25720154150740 in words is "twenty-five trillion, seven hundred twenty billion, one hundred fifty-four million, one hundred fifty thousand, seven hundred forty".