5654211566 has 4 divisors (see below), whose sum is σ = 8481317352. Its totient is φ = 2827105782.

The previous prime is 5654211553. The next prime is 5654211581. The reversal of 5654211566 is 6651124565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6651124565 = 5 ⋅1330224913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1413552890 + ... + 1413552893.

It is an arithmetic number, because the mean of its divisors is an integer number (2120329338).

Almost surely, 2^5654211566 is an apocalyptic number.

5654211566 is a deficient number, since it is larger than the sum of its proper divisors (2827105786).

5654211566 is a wasteful number, since it uses less digits than its factorization.

5654211566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827105785.

The product of its digits is 216000, while the sum is 41.

The square root of 5654211566 is about 75194.4915934671. The cubic root of 5654211566 is about 1781.5199286822.

The spelling of 5654211566 in words is "five billion, six hundred fifty-four million, two hundred eleven thousand, five hundred sixty-six".