616656051245 has 8 divisors (see below), whose sum is σ = 796909358616. Its totient is φ = 455376776256.

The previous prime is 616656051233. The next prime is 616656051247. The reversal of 616656051245 is 542150656616.

It can be written as a sum of positive squares in 4 ways, for example, as 10156205284 + 606499845961 = 100778^2 + 778781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 616656051245 - 2⁶ = 616656051181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616656051245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616656051247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4743508022 + ... + 4743508151.

It is an arithmetic number, because the mean of its divisors is an integer number (99613669827).

Almost surely, 2^616656051245 is an apocalyptic number.

616656051245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

616656051245 is a deficient number, since it is larger than the sum of its proper divisors (180253307371).

616656051245 is a wasteful number, since it uses less digits than its factorization.

616656051245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487016191.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 616656051245 in words is "six hundred sixteen billion, six hundred fifty-six million, fifty-one thousand, two hundred forty-five".