84756020055 has 24 divisors (see below), whose sum is σ = 157749981552. Its totient is φ = 38745608832.

The previous prime is 84756020051. The next prime is 84756020081. The reversal of 84756020055 is 55002065748.

It is not a de Polignac number, because 84756020055 - 2² = 84756020051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84756019989 and 84756020016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84756020051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57656422 + ... + 57657891.

It is an arithmetic number, because the mean of its divisors is an integer number (6572915898).

Almost surely, 2^84756020055 is an apocalyptic number.

84756020055 is a deficient number, since it is larger than the sum of its proper divisors (72993961497).

84756020055 is a wasteful number, since it uses less digits than its factorization.

84756020055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115314335 (or 115314328 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 84756020055 in words is "eighty-four billion, seven hundred fifty-six million, twenty thousand, fifty-five".