8145650400 has 144 divisors (see below), whose sum is σ = 27161105328. Its totient is φ = 2119168000.

The previous prime is 8145650377. The next prime is 8145650407. The reversal of 8145650400 is 40565418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145650407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57010 + ... + 139790.

It is an arithmetic number, because the mean of its divisors is an integer number (188618787).

Almost surely, 2^8145650400 is an apocalyptic number.

8145650400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8145650400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13580552664).

8145650400 is an abundant number, since it is smaller than the sum of its proper divisors (19015454928).

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

8145650400 is a wasteful number, since it uses less digits than its factorization.

8145650400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82845 (or 82832 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 8145650400 is about 90253.2570049414. The cubic root of 8145650400 is about 2012.0646095925.

The spelling of 8145650400 in words is "eight billion, one hundred forty-five million, six hundred fifty thousand, four hundred".