5661610666050 has 96 divisors (see below), whose sum is σ = 14144524460352. Its totient is φ = 1498648596480.

The previous prime is 5661610666009. The next prime is 5661610666057. The reversal of 5661610666050 is 506660161665.

It is a super-2 number, since 2×5661610666050² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5661610666057) 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 47 ways as a sum of consecutive naturals, for example, 11228154 + ... + 11721546.

It is an arithmetic number, because the mean of its divisors is an integer number (147338796462).

Almost surely, 2^{5661610666050} is an apocalyptic number.

5661610666050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5661610666050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7072262230176).

5661610666050 is an abundant number, since it is smaller than the sum of its proper divisors (8482913794302).

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

5661610666050 is a wasteful number, since it uses less digits than its factorization.

5661610666050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493972 (or 493967 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 5661610666050 in words is "five trillion, six hundred sixty-one billion, six hundred ten million, six hundred sixty-six thousand, fifty".