5661622057 has 8 divisors (see below), whose sum is σ = 6968150336. Its totient is φ = 4479525072.

The previous prime is 5661622037. The next prime is 5661622067. The reversal of 5661622057 is 7502261665.

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 5661622057 - 2¹⁹ = 5661097769 is a prime.

It is a super-2 number, since 2×5661622057² = 64107928632617822498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5661622037) 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, 31107723 + ... + 31107904.

It is an arithmetic number, because the mean of its divisors is an integer number (871018792).

Almost surely, 2^5661622057 is an apocalyptic number.

It is an amenable number.

5661622057 is a deficient number, since it is larger than the sum of its proper divisors (1306528279).

5661622057 is a wasteful number, since it uses less digits than its factorization.

5661622057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62215647.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 5661622057 is about 75243.7509498297. The cubic root of 5661622057 is about 1782.2978841284.

The spelling of 5661622057 in words is "five billion, six hundred sixty-one million, six hundred twenty-two thousand, fifty-seven".