646054043037 has 32 divisors (see below), whose sum is σ = 968219616000. Its totient is φ = 380199992832.

The previous prime is 646054043027. The next prime is 646054043057. The reversal of 646054043037 is 730340450646.

It is not a de Polignac number, because 646054043037 - 2⁴ = 646054043021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 646054043037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646054043027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4001289 + ... + 4159617.

It is an arithmetic number, because the mean of its divisors is an integer number (30256863000).

Almost surely, 2^646054043037 is an apocalyptic number.

It is an amenable number.

646054043037 is a deficient number, since it is larger than the sum of its proper divisors (322165572963).

646054043037 is a wasteful number, since it uses less digits than its factorization.

646054043037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162917.

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 646054043037 in words is "six hundred forty-six billion, fifty-four million, forty-three thousand, thirty-seven".