645415011214 has 4 divisors (see below), whose sum is σ = 968122516824. Its totient is φ = 322707505606.

The previous prime is 645415011209. The next prime is 645415011217. The reversal of 645415011214 is 412110514546.

645415011214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×645415011214³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 645415011214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645415011217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161353752802 + ... + 161353752805.

It is an arithmetic number, because the mean of its divisors is an integer number (242030629206).

Almost surely, 2^645415011214 is an apocalyptic number.

645415011214 is a deficient number, since it is larger than the sum of its proper divisors (322707505610).

645415011214 is a wasteful number, since it uses less digits than its factorization.

645415011214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322707505609.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 645415011214 in words is "six hundred forty-five billion, four hundred fifteen million, eleven thousand, two hundred fourteen".