55671027640 has 32 divisors (see below), whose sum is σ = 126551159280. Its totient is φ = 22038838272.

The previous prime is 55671027619. The next prime is 55671027677. The reversal of 55671027640 is 4672017655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7170222 + ... + 7177981.

Almost surely, 2^55671027640 is an apocalyptic number.

It is an amenable number.

55671027640 is an abundant number, since it is smaller than the sum of its proper divisors (70880131640).

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

55671027640 is a wasteful number, since it uses less digits than its factorization.

55671027640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14348311 (or 14348307 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 55671027640 in words is "fifty-five billion, six hundred seventy-one million, twenty-seven thousand, six hundred forty".