55566767672 has 16 divisors (see below), whose sum is σ = 112202127240. Its totient is φ = 25646200416.

The previous prime is 55566767657. The next prime is 55566767743. The reversal of 55566767672 is 27676766555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267147818 + ... + 267148025.

Almost surely, 2^55566767672 is an apocalyptic number.

55566767672 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55566767672 is an abundant number, since it is smaller than the sum of its proper divisors (56635359568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55566767672 is a wasteful number, since it uses less digits than its factorization.

55566767672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534295862 (or 534295858 counting only the distinct ones).

The product of its digits is 111132000, while the sum is 62.

The spelling of 55566767672 in words is "fifty-five billion, five hundred sixty-six million, seven hundred sixty-seven thousand, six hundred seventy-two".