55531672766 has 4 divisors (see below), whose sum is σ = 83297509152. Its totient is φ = 27765836382.

The previous prime is 55531672759. The next prime is 55531672771. The reversal of 55531672766 is 66727613555.

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

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, 13882918190 + ... + 13882918193.

It is an arithmetic number, because the mean of its divisors is an integer number (20824377288).

Almost surely, 2^55531672766 is an apocalyptic number.

55531672766 is a deficient number, since it is larger than the sum of its proper divisors (27765836386).

55531672766 is a wasteful number, since it uses less digits than its factorization.

55531672766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27765836385.

The product of its digits is 7938000, while the sum is 53.

The spelling of 55531672766 in words is "fifty-five billion, five hundred thirty-one million, six hundred seventy-two thousand, seven hundred sixty-six".