8161937600 has 42 divisors (see below), whose sum is σ = 20083471644. Its totient is φ = 3264774400.

The previous prime is 8161937599. The next prime is 8161937603. The reversal of 8161937600 is 67391618.

It is not an unprimeable number, because it can be changed into a prime (8161937603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2549006 + ... + 2552205.

Almost surely, 2^8161937600 is an apocalyptic number.

8161937600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8161937600 is an abundant number, since it is smaller than the sum of its proper divisors (11921534044).

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

8161937600 is a wasteful number, since it uses less digits than its factorization.

8161937600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101233 (or 5101218 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 8161937600 is about 90343.4424847758. The cubic root of 8161937600 is about 2013.4047555422.

The spelling of 8161937600 in words is "eight billion, one hundred sixty-one million, nine hundred thirty-seven thousand, six hundred".