5537661700 has 72 divisors (see below), whose sum is σ = 12555446400. Its totient is φ = 2116012800.

The previous prime is 5537661673. The next prime is 5537661709. The reversal of 5537661700 is 71667355.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5537661709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3216840 + ... + 3218560.

It is an arithmetic number, because the mean of its divisors is an integer number (174381200).

Almost surely, 2^5537661700 is an apocalyptic number.

5537661700 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 5537661700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6277723200).

5537661700 is an abundant number, since it is smaller than the sum of its proper divisors (7017784700).

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

5537661700 is a wasteful number, since it uses less digits than its factorization.

5537661700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 5537661700 is about 74415.4668063031. The cubic root of 5537661700 is about 1769.1940642329.

The spelling of 5537661700 in words is "five billion, five hundred thirty-seven million, six hundred sixty-one thousand, seven hundred".