25720046716 has 96 divisors (see below), whose sum is σ = 55852536320. Its totient is φ = 10091692800.

The previous prime is 25720046713. The next prime is 25720046743. The reversal of 25720046716 is 61764002752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25720046713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41550655 + ... + 41551273.

Almost surely, 2^25720046716 is an apocalyptic number.

25720046716 is a gapful number since it is divisible by the number (26) 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 25720046716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27926268160).

25720046716 is an abundant number, since it is smaller than the sum of its proper divisors (30132489604).

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

25720046716 is a wasteful number, since it uses less digits than its factorization.

25720046716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 25720046716 in words is "twenty-five billion, seven hundred twenty million, forty-six thousand, seven hundred sixteen".