10161779418 has 24 divisors (see below), whose sum is σ = 25162501728. Its totient is φ = 2903365512.

The previous prime is 10161779417. The next prime is 10161779471. The reversal of 10161779418 is 81497716101.

10161779418 is a `hidden beast` number, since 1 + 0 + 161 + 7 + 79 + 418 = 666.

It is not an unprimeable number, because it can be changed into a prime (10161779417) 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, 40324396 + ... + 40324647.

It is an arithmetic number, because the mean of its divisors is an integer number (1048437572).

Almost surely, 2^10161779418 is an apocalyptic number.

10161779418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10161779418 is an abundant number, since it is smaller than the sum of its proper divisors (15000722310).

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

10161779418 is a wasteful number, since it uses less digits than its factorization.

10161779418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80649058 (or 80649055 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 45.

The spelling of 10161779418 in words is "ten billion, one hundred sixty-one million, seven hundred seventy-nine thousand, four hundred eighteen".