162505282878 has 24 divisors (see below), whose sum is σ = 353605925088. Its totient is φ = 53935943712.

The previous prime is 162505282873. The next prime is 162505282943. The reversal of 162505282878 is 878282505261.

162505282878 is a `hidden beast` number, since 1 + 6 + 25 + 0 + 528 + 28 + 78 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162505282873) 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, 19369350 + ... + 19377737.

It is an arithmetic number, because the mean of its divisors is an integer number (14733580212).

Almost surely, 2^162505282878 is an apocalyptic number.

162505282878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

162505282878 is an abundant number, since it is smaller than the sum of its proper divisors (191100642210).

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

162505282878 is a wasteful number, since it uses less digits than its factorization.

162505282878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38747328 (or 38747325 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 162505282878 in words is "one hundred sixty-two billion, five hundred five million, two hundred eighty-two thousand, eight hundred seventy-eight".