55431424366 has 4 divisors (see below), whose sum is σ = 83147136552. Its totient is φ = 27715712182.

The previous prime is 55431424361. The next prime is 55431424379. The reversal of 55431424366 is 66342413455.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55431424361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13857856090 + ... + 13857856093.

It is an arithmetic number, because the mean of its divisors is an integer number (20786784138).

Almost surely, 2^55431424366 is an apocalyptic number.

55431424366 is a deficient number, since it is larger than the sum of its proper divisors (27715712186).

55431424366 is a wasteful number, since it uses less digits than its factorization.

55431424366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27715712185.

The product of its digits is 1036800, while the sum is 43.

The spelling of 55431424366 in words is "fifty-five billion, four hundred thirty-one million, four hundred twenty-four thousand, three hundred sixty-six".