5511564664546 has 8 divisors (see below), whose sum is σ = 8270311274460. Its totient is φ = 2754794239728.

The previous prime is 5511564664493. The next prime is 5511564664549. The reversal of 5511564664546 is 6454664651155.

It can be written as a sum of positive squares in 2 ways, for example, as 5468979802225 + 42584862321 = 2338585^2 + 206361^2 .

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

It is a super-2 number, since 2×5511564664546² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5511564664549) 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, 494039301 + ... + 494050456.

Almost surely, 2^{5511564664546} is an apocalyptic number.

5511564664546 is a deficient number, since it is larger than the sum of its proper divisors (2758746609914).

5511564664546 is a wasteful number, since it uses less digits than its factorization.

5511564664546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988092548.

The product of its digits is 51840000, while the sum is 58.

The spelling of 5511564664546 in words is "five trillion, five hundred eleven billion, five hundred sixty-four million, six hundred sixty-four thousand, five hundred forty-six".