8415778160 has 20 divisors (see below), whose sum is σ = 19566684408. Its totient is φ = 3366311232.

The previous prime is 8415778159. The next prime is 8415778171. The reversal of 8415778160 is 618775148.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52598534 + ... + 52598693.

Almost surely, 2^8415778160 is an apocalyptic number.

8415778160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8415778160 is an abundant number, since it is smaller than the sum of its proper divisors (11150906248).

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

8415778160 is a wasteful number, since it uses less digits than its factorization.

8415778160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105197240 (or 105197234 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 47.

The square root of 8415778160 is about 91737.5504360128. The cubic root of 8415778160 is about 2034.0646845698.

The spelling of 8415778160 in words is "eight billion, four hundred fifteen million, seven hundred seventy-eight thousand, one hundred sixty".