5661021030 has 64 divisors (see below), whose sum is σ = 15639160320. Its totient is φ = 1284632064.

The previous prime is 5661021019. The next prime is 5661021071. The reversal of 5661021030 is 301201665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67779 + ... + 126158.

It is an arithmetic number, because the mean of its divisors is an integer number (244361880).

Almost surely, 2^5661021030 is an apocalyptic number.

5661021030 is an abundant number, since it is smaller than the sum of its proper divisors (9978139290).

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

5661021030 is a wasteful number, since it uses less digits than its factorization.

5661021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194093.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 5661021030 is about 75239.7569772790. The cubic root of 5661021030 is about 1782.2348134484.

Adding to 5661021030 its reverse (301201665), we get a palindrome (5962222695).

The spelling of 5661021030 in words is "five billion, six hundred sixty-one million, twenty-one thousand, thirty".