7145665450 has 48 divisors (see below), whose sum is σ = 16570528704. Its totient is φ = 2227219200.

The previous prime is 7145665427. The next prime is 7145665459. The reversal of 7145665450 is 545665417.

7145665450 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 7145665397 and 7145665406.

It is not an unprimeable number, because it can be changed into a prime (7145665459) 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, 924159 + ... + 931858.

It is an arithmetic number, because the mean of its divisors is an integer number (345219348).

Almost surely, 2^7145665450 is an apocalyptic number.

7145665450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7145665450 is an abundant number, since it is smaller than the sum of its proper divisors (9424863254).

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

7145665450 is a wasteful number, since it uses less digits than its factorization.

7145665450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856047 (or 1856042 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 7145665450 is about 84532.0380092660. The cubic root of 7145665450 is about 1926.1091443615.

The spelling of 7145665450 in words is "seven billion, one hundred forty-five million, six hundred sixty-five thousand, four hundred fifty".