5661156426 has 32 divisors (see below), whose sum is σ = 11603487168. Its totient is φ = 1840229760.

The previous prime is 5661156421. The next prime is 5661156437. The reversal of 5661156426 is 6246511665.

It is not an unprimeable number, because it can be changed into a prime (5661156421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893020 + ... + 899336.

It is an arithmetic number, because the mean of its divisors is an integer number (362608974).

Almost surely, 2^5661156426 is an apocalyptic number.

5661156426 is an abundant number, since it is smaller than the sum of its proper divisors (5942330742).

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

5661156426 is a wasteful number, since it uses less digits than its factorization.

5661156426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006.

The product of its digits is 259200, while the sum is 42.

The square root of 5661156426 is about 75240.6567355708. The cubic root of 5661156426 is about 1782.2490220479.

The spelling of 5661156426 in words is "five billion, six hundred sixty-one million, one hundred fifty-six thousand, four hundred twenty-six".