616551650 has 96 divisors (see below), whose sum is σ = 1373537088. Its totient is φ = 202924800.

The previous prime is 616551647. The next prime is 616551659. The reversal of 616551650 is 56155616.

It is a self number, because there is not a number n which added to its sum of digits gives 616551650.

It is not an unprimeable number, because it can be changed into a prime (616551659) 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 47 ways as a sum of consecutive naturals, for example, 378137 + ... + 379763.

It is an arithmetic number, because the mean of its divisors is an integer number (14307678).

Almost surely, 2^616551650 is an apocalyptic number.

616551650 is an abundant number, since it is smaller than the sum of its proper divisors (756985438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616551650 is a wasteful number, since it uses less digits than its factorization.

616551650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 616551650 is about 24830.4581109572. The cubic root of 616551650 is about 851.1180903257.

The spelling of 616551650 in words is "six hundred sixteen million, five hundred fifty-one thousand, six hundred fifty".