8416377655985 has 32 divisors (see below), whose sum is σ = 11039446454400. Its totient is φ = 6122096690688.

The previous prime is 8416377655951. The next prime is 8416377655991. The reversal of 8416377655985 is 5895567736148.

It is a cyclic number.

It is not a de Polignac number, because 8416377655985 - 2¹² = 8416377651889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118851749 + ... + 118922541.

It is an arithmetic number, because the mean of its divisors is an integer number (344982701700).

Almost surely, 2^{8416377655985} is an apocalyptic number.

It is an amenable number.

8416377655985 is a deficient number, since it is larger than the sum of its proper divisors (2623068798415).

8416377655985 is a wasteful number, since it uses less digits than its factorization.

8416377655985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98177.

The product of its digits is 1524096000, while the sum is 74.

The spelling of 8416377655985 in words is "eight trillion, four hundred sixteen billion, three hundred seventy-seven million, six hundred fifty-five thousand, nine hundred eighty-five".