3612220632661 has 8 divisors (see below), whose sum is σ = 3614069145024. Its totient is φ = 3610372288320.

The previous prime is 3612220632649. The next prime is 3612220632697. The reversal of 3612220632661 is 1662360222163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3612220632661 - 2¹³ = 3612220624469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3612227632661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84488856 + ... + 84531598.

It is an arithmetic number, because the mean of its divisors is an integer number (451758643128).

Almost surely, 2^{3612220632661} is an apocalyptic number.

It is an amenable number.

3612220632661 is a deficient number, since it is larger than the sum of its proper divisors (1848512363).

3612220632661 is a wasteful number, since it uses less digits than its factorization.

3612220632661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84011.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 3612220632661 in words is "three trillion, six hundred twelve billion, two hundred twenty million, six hundred thirty-two thousand, six hundred sixty-one".