5011658661 has 4 divisors (see below), whose sum is σ = 6682211552. Its totient is φ = 3341105772.

The previous prime is 5011658651. The next prime is 5011658689. The reversal of 5011658661 is 1668561105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5011658661 - 2⁹ = 5011658149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5011658651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835276441 + ... + 835276446.

It is an arithmetic number, because the mean of its divisors is an integer number (1670552888).

Almost surely, 2^5011658661 is an apocalyptic number.

It is an amenable number.

5011658661 is a deficient number, since it is larger than the sum of its proper divisors (1670552891).

5011658661 is a wasteful number, since it uses less digits than its factorization.

5011658661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670552890.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 5011658661 is about 70793.0693006031. The cubic root of 5011658661 is about 1711.3039836608.

The spelling of 5011658661 in words is "five billion, eleven million, six hundred fifty-eight thousand, six hundred sixty-one".