646013134151 has 16 divisors (see below), whose sum is σ = 807726796800. Its totient is φ = 501944467680.

The previous prime is 646013134141. The next prime is 646013134153. The reversal of 646013134151 is 151431310646.

It is a cyclic number.

It is not a de Polignac number, because 646013134151 - 2¹⁰ = 646013133127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646013134153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11992871 + ... + 12046616.

It is an arithmetic number, because the mean of its divisors is an integer number (50482924800).

Almost surely, 2^646013134151 is an apocalyptic number.

646013134151 is a deficient number, since it is larger than the sum of its proper divisors (161713662649).

646013134151 is a wasteful number, since it uses less digits than its factorization.

646013134151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24039854.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 646013134151 its reverse (151431310646), we get a palindrome (797444444797).

The spelling of 646013134151 in words is "six hundred forty-six billion, thirteen million, one hundred thirty-four thousand, one hundred fifty-one".