87878550655 has 16 divisors (see below), whose sum is σ = 120531769920. Its totient is φ = 60253270272.

The previous prime is 87878550623. The next prime is 87878550691. The reversal of 87878550655 is 55605587878.

It is a cyclic number.

It is not a de Polignac number, because 87878550655 - 2⁵ = 87878550623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221077 + ... + 473953.

It is an arithmetic number, because the mean of its divisors is an integer number (7533235620).

Almost surely, 2^87878550655 is an apocalyptic number.

87878550655 is a deficient number, since it is larger than the sum of its proper divisors (32653219265).

87878550655 is a wasteful number, since it uses less digits than its factorization.

87878550655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262818.

The product of its (nonzero) digits is 94080000, while the sum is 64.

The spelling of 87878550655 in words is "eighty-seven billion, eight hundred seventy-eight million, five hundred fifty thousand, six hundred fifty-five".