616651005 has 16 divisors (see below), whose sum is σ = 992698560. Its totient is φ = 326861568.

The previous prime is 616651001. The next prime is 616651031. The reversal of 616651005 is 500156616.

616651005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 616651005 - 2² = 616651001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616651001) 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, 123660 + ... + 128549.

It is an arithmetic number, because the mean of its divisors is an integer number (62043660).

Almost surely, 2^616651005 is an apocalyptic number.

It is an amenable number.

616651005 is a deficient number, since it is larger than the sum of its proper divisors (376047555).

616651005 is a wasteful number, since it uses less digits than its factorization.

616651005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252380.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 616651005 is about 24832.4586982441. The cubic root of 616651005 is about 851.1638060393.

The spelling of 616651005 in words is "six hundred sixteen million, six hundred fifty-one thousand, five".