55665056654 has 4 divisors (see below), whose sum is σ = 83497584984. Its totient is φ = 27832528326.

The previous prime is 55665056563. The next prime is 55665056663. The reversal of 55665056654 is 45665056655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45665056655 = 5 ⋅9133011331.

It is a junction number, because it is equal to n+sod(n) for n = 55665056596 and 55665056605.

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, 13916264162 + ... + 13916264165.

It is an arithmetic number, because the mean of its divisors is an integer number (20874396246).

Almost surely, 2^55665056654 is an apocalyptic number.

55665056654 is a deficient number, since it is larger than the sum of its proper divisors (27832528330).

55665056654 is a wasteful number, since it uses less digits than its factorization.

55665056654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832528329.

The product of its (nonzero) digits is 16200000, while the sum is 53.

Subtracting from 55665056654 its reverse (45665056655), we obtain a palindrome (9999999999).

The spelling of 55665056654 in words is "fifty-five billion, six hundred sixty-five million, fifty-six thousand, six hundred fifty-four".