5651666061 has 8 divisors (see below), whose sum is σ = 7583552544. Its totient is φ = 3743778480.

The previous prime is 5651666057. The next prime is 5651666081. The reversal of 5651666061 is 1606661565.

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

It is not a de Polignac number, because 5651666061 - 2² = 5651666057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651666051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5999175 + ... + 6000116.

It is an arithmetic number, because the mean of its divisors is an integer number (947944068).

Almost surely, 2^5651666061 is an apocalyptic number.

It is an amenable number.

5651666061 is a deficient number, since it is larger than the sum of its proper divisors (1931886483).

5651666061 is a wasteful number, since it uses less digits than its factorization.

5651666061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11999451.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 5651666061 is about 75177.5635479097. The cubic root of 5651666061 is about 1781.2525440062.

The spelling of 5651666061 in words is "five billion, six hundred fifty-one million, six hundred sixty-six thousand, sixty-one".