20004356657725 has 48 divisors (see below), whose sum is σ = 27120940577280. Its totient is φ = 14516128299200.

The previous prime is 20004356657683. The next prime is 20004356657767. The reversal of 20004356657725 is 52775665340002.

It is an interprime number because it is at equal distance from previous prime (20004356657683) and next prime (20004356657767).

It is not a de Polignac number, because 20004356657725 - 2¹³ = 20004356649533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247700802 + ... + 247781548.

It is an arithmetic number, because the mean of its divisors is an integer number (565019595360).

Almost surely, 2^{20004356657725} is an apocalyptic number.

20004356657725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20004356657725 is a deficient number, since it is larger than the sum of its proper divisors (7116583919555).

20004356657725 is a wasteful number, since it uses less digits than its factorization.

20004356657725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82770 (or 82765 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 52.

The spelling of 20004356657725 in words is "twenty trillion, four billion, three hundred fifty-six million, six hundred fifty-seven thousand, seven hundred twenty-five".