646411155245 has 16 divisors (see below), whose sum is σ = 792590842368. Its totient is φ = 505874880000.

The previous prime is 646411155233. The next prime is 646411155287. The reversal of 646411155245 is 542551114646.

646411155245 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 646411155245 - 2¹⁸ = 646410893101 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 646411155196 and 646411155205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207881 + ... + 1155870.

It is an arithmetic number, because the mean of its divisors is an integer number (49536927648).

Almost surely, 2^646411155245 is an apocalyptic number.

It is an amenable number.

646411155245 is a deficient number, since it is larger than the sum of its proper divisors (146179687123).

646411155245 is a wasteful number, since it uses less digits than its factorization.

646411155245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365820.

The product of its digits is 576000, while the sum is 44.

The spelling of 646411155245 in words is "six hundred forty-six billion, four hundred eleven million, one hundred fifty-five thousand, two hundred forty-five".