646110002541 has 4 divisors (see below), whose sum is σ = 861480003392. Its totient is φ = 430740001692.

The previous prime is 646110002519. The next prime is 646110002561. The reversal of 646110002541 is 145200011646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 646110002541 - 2⁹ = 646110002029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 646110002499 and 646110002508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646110002561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107685000421 + ... + 107685000426.

It is an arithmetic number, because the mean of its divisors is an integer number (215370000848).

Almost surely, 2^646110002541 is an apocalyptic number.

It is an amenable number.

646110002541 is a deficient number, since it is larger than the sum of its proper divisors (215370000851).

646110002541 is a wasteful number, since it uses less digits than its factorization.

646110002541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215370000850.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 646110002541 in words is "six hundred forty-six billion, one hundred ten million, two thousand, five hundred forty-one".