5661011700 has 288 divisors, whose sum is σ = 18973785600. Its totient is φ = 1446197760.

The previous prime is 5661011693. The next prime is 5661011701. The reversal of 5661011700 is 71101665.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661011701) 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 95 ways as a sum of consecutive naturals, for example, 15424917 + ... + 15425283.

It is an arithmetic number, because the mean of its divisors is an integer number (65881200).

Almost surely, 2^5661011700 is an apocalyptic number.

5661011700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5661011700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9486892800).

5661011700 is an abundant number, since it is smaller than the sum of its proper divisors (13312773900).

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

5661011700 is a wasteful number, since it uses less digits than its factorization.

5661011700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 5661011700 is about 75239.6949754583. The cubic root of 5661011700 is about 1782.2338343400.

The spelling of 5661011700 in words is "five billion, six hundred sixty-one million, eleven thousand, seven hundred".