3516265607661 has 16 divisors (see below), whose sum is σ = 5210334747520. Its totient is φ = 2343703507200.

The previous prime is 3516265607633. The next prime is 3516265607731. The reversal of 3516265607661 is 1667065626153.

3516265607661 is a `hidden beast` number, since 3 + 5 + 1 + 6 + 2 + 6 + 560 + 76 + 6 + 1 = 666.

It is not a de Polignac number, because 3516265607661 - 2²³ = 3516257219053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3516265607598 and 3516265607607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3516265605661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13018420 + ... + 13285773.

It is an arithmetic number, because the mean of its divisors is an integer number (325645921720).

Almost surely, 2^{3516265607661} is an apocalyptic number.

It is an amenable number.

3516265607661 is a deficient number, since it is larger than the sum of its proper divisors (1694069139859).

3516265607661 is a wasteful number, since it uses less digits than its factorization.

3516265607661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26309153 (or 26309147 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 3516265607661 in words is "three trillion, five hundred sixteen billion, two hundred sixty-five million, six hundred seven thousand, six hundred sixty-one".