615741216645 has 64 divisors (see below), whose sum is σ = 1040802048000. Its totient is φ = 309983890176.

The previous prime is 615741216641. The next prime is 615741216677. The reversal of 615741216645 is 546612147516.

615741216645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 615741216645 - 2² = 615741216641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 615741216594 and 615741216603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615741216641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 131594416 + ... + 131599094.

It is an arithmetic number, because the mean of its divisors is an integer number (16262532000).

Almost surely, 2^615741216645 is an apocalyptic number.

It is an amenable number.

615741216645 is a deficient number, since it is larger than the sum of its proper divisors (425060831355).

615741216645 is a wasteful number, since it uses less digits than its factorization.

615741216645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282.

The product of its digits is 1209600, while the sum is 48.

The spelling of 615741216645 in words is "six hundred fifteen billion, seven hundred forty-one million, two hundred sixteen thousand, six hundred forty-five".