5661077421 has 8 divisors (see below), whose sum is σ = 7603199424. Its totient is φ = 3746503520.

The previous prime is 5661077413. The next prime is 5661077437. The reversal of 5661077421 is 1247701665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5661077421 - 2³ = 5661077413 is a prime.

It is a super-2 number, since 2×5661077421² = 64095595133112022482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5661077421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661077221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6886545 + ... + 6887366.

It is an arithmetic number, because the mean of its divisors is an integer number (950399928).

Almost surely, 2^5661077421 is an apocalyptic number.

It is an amenable number.

5661077421 is a deficient number, since it is larger than the sum of its proper divisors (1942122003).

5661077421 is a wasteful number, since it uses less digits than its factorization.

5661077421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13774051.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 5661077421 is about 75240.1317183855. The cubic root of 5661077421 is about 1782.2407312071.

The spelling of 5661077421 in words is "five billion, six hundred sixty-one million, seventy-seven thousand, four hundred twenty-one".