5661712040 has 16 divisors (see below), whose sum is σ = 12738852180. Its totient is φ = 2264684800.

The previous prime is 5661712019. The next prime is 5661712051. The reversal of 5661712040 is 402171665.

It can be written as a sum of positive squares in 2 ways, for example, as 5655942436 + 5769604 = 75206^2 + 2402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5661711988 and 5661712006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70771361 + ... + 70771440.

Almost surely, 2^5661712040 is an apocalyptic number.

It is an amenable number.

5661712040 is an abundant number, since it is smaller than the sum of its proper divisors (7077140140).

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

5661712040 is a wasteful number, since it uses less digits than its factorization.

5661712040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141542812 (or 141542808 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 5661712040 is about 75244.3488907971. The cubic root of 5661712040 is about 1782.3073263965.

The spelling of 5661712040 in words is "five billion, six hundred sixty-one million, seven hundred twelve thousand, forty".