3561661199030 has 64 divisors (see below), whose sum is σ = 7192418112000. Its totient is φ = 1258672504320.

The previous prime is 3561661199003. The next prime is 3561661199051. The reversal of 3561661199030 is 309911661653.

It is a self number, because there is not a number n which added to its sum of digits gives 3561661199030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 950675 + ... + 2833214.

It is an arithmetic number, because the mean of its divisors is an integer number (112381533000).

Almost surely, 2^{3561661199030} is an apocalyptic number.

3561661199030 is an abundant number, since it is smaller than the sum of its proper divisors (3630756912970).

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

3561661199030 is a wasteful number, since it uses less digits than its factorization.

3561661199030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784149.

The product of its (nonzero) digits is 787320, while the sum is 50.

The spelling of 3561661199030 in words is "three trillion, five hundred sixty-one billion, six hundred sixty-one million, one hundred ninety-nine thousand, thirty".