610216256649 has 4 divisors (see below), whose sum is σ = 813621675536. Its totient is φ = 406810837764.

The previous prime is 610216256633. The next prime is 610216256659. The reversal of 610216256649 is 946652612016.

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 610216256649 - 2⁴ = 610216256633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 610216256598 and 610216256607.

It is not an unprimeable number, because it can be changed into a prime (610216256609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101702709439 + ... + 101702709444.

It is an arithmetic number, because the mean of its divisors is an integer number (203405418884).

Almost surely, 2^610216256649 is an apocalyptic number.

It is an amenable number.

610216256649 is a deficient number, since it is larger than the sum of its proper divisors (203405418887).

610216256649 is a wasteful number, since it uses less digits than its factorization.

610216256649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203405418886.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 610216256649 in words is "six hundred ten billion, two hundred sixteen million, two hundred fifty-six thousand, six hundred forty-nine".