55377645837372 has 36 divisors (see below), whose sum is σ = 139985259521016. Its totient is φ = 18458835896160.

The previous prime is 55377645837361. The next prime is 55377645837377. The reversal of 55377645837372 is 27373854677355.

55377645837372 is a `hidden beast` number, since 5 + 5 + 3 + 7 + 7 + 6 + 4 + 583 + 7 + 37 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55377645837372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55377645837377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14028943 + ... + 17537574.

Almost surely, 2^{55377645837372} is an apocalyptic number.

It is an amenable number.

55377645837372 is an abundant number, since it is smaller than the sum of its proper divisors (84607613683644).

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

55377645837372 is a wasteful number, since it uses less digits than its factorization.

55377645837372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31615258 (or 31615253 counting only the distinct ones).

The product of its digits is 3111696000, while the sum is 72.

The spelling of 55377645837372 in words is "fifty-five trillion, three hundred seventy-seven billion, six hundred forty-five million, eight hundred thirty-seven thousand, three hundred seventy-two".