8100161040 has 80 divisors (see below), whose sum is σ = 25142140800. Its totient is φ = 2157321216.

The previous prime is 8100161029. The next prime is 8100161063. The reversal of 8100161040 is 401610018.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×8100161040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8100160998 and 8100161016.

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, 173301 + ... + 215019.

It is an arithmetic number, because the mean of its divisors is an integer number (314276760).

Almost surely, 2^8100161040 is an apocalyptic number.

8100161040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8100161040 is an abundant number, since it is smaller than the sum of its proper divisors (17041979760).

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

8100161040 is a wasteful number, since it uses less digits than its factorization.

8100161040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42544 (or 42538 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 8100161040 is about 90000.8946622199. The cubic root of 8100161040 is about 2008.3121594771.

Adding to 8100161040 its reverse (401610018), we get a palindrome (8501771058).

The spelling of 8100161040 in words is "eight billion, one hundred million, one hundred sixty-one thousand, forty".