5654542661 has 4 divisors (see below), whose sum is σ = 5656416192. Its totient is φ = 5652669132.

The previous prime is 5654542639. The next prime is 5654542667. The reversal of 5654542661 is 1662454565.

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 a cyclic number.

It is not a de Polignac number, because 5654542661 - 2¹⁴ = 5654526277 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 (5654542667) 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, 932231 + ... + 938276.

It is an arithmetic number, because the mean of its divisors is an integer number (1414104048).

Almost surely, 2^5654542661 is an apocalyptic number.

It is an amenable number.

5654542661 is a deficient number, since it is larger than the sum of its proper divisors (1873531).

5654542661 is a wasteful number, since it uses less digits than its factorization.

5654542661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873530.

The product of its digits is 864000, while the sum is 44.

The square root of 5654542661 is about 75196.6931520263. The cubic root of 5654542661 is about 1781.5547016310.

The spelling of 5654542661 in words is "five billion, six hundred fifty-four million, five hundred forty-two thousand, six hundred sixty-one".