2425573607661 has 20 divisors (see below), whose sum is σ = 3684801093600. Its totient is φ = 1589641457256.

The previous prime is 2425573607629. The next prime is 2425573607663. The reversal of 2425573607661 is 1667063755242.

2425573607661 is a `hidden beast` number, since 2 + 4 + 2 + 5 + 573 + 6 + 0 + 7 + 6 + 61 = 666.

It is not a de Polignac number, because 2425573607661 - 2⁵ = 2425573607629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2425573607598 and 2425573607607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2425573607663) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 253769401 + ... + 253778958.

It is an arithmetic number, because the mean of its divisors is an integer number (184240054680).

Almost surely, 2^{2425573607661} is an apocalyptic number.

It is an amenable number.

2425573607661 is a deficient number, since it is larger than the sum of its proper divisors (1259227485939).

2425573607661 is an equidigital number, since it uses as much as digits as its factorization.

2425573607661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507548430 (or 507548421 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 2425573607661 in words is "two trillion, four hundred twenty-five billion, five hundred seventy-three million, six hundred seven thousand, six hundred sixty-one".