216451460752 has 20 divisors (see below), whose sum is σ = 419427815740. Its totient is φ = 108212024448.

The previous prime is 216451460651. The next prime is 216451460759. The reversal of 216451460752 is 257064154612.

216451460752 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 135103294096 + 81348166656 = 367564^2 + 285216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 216451460699 and 216451460708.

It is not an unprimeable number, because it can be changed into a prime (216451460759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725727 + ... + 979582.

It is an arithmetic number, because the mean of its divisors is an integer number (20971390787).

Almost surely, 2^216451460752 is an apocalyptic number.

It is an amenable number.

216451460752 is a deficient number, since it is larger than the sum of its proper divisors (202976354988).

216451460752 is a wasteful number, since it uses less digits than its factorization.

216451460752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713250 (or 1713244 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 216451460752 in words is "two hundred sixteen billion, four hundred fifty-one million, four hundred sixty thousand, seven hundred fifty-two".