616556611701 has 56 divisors (see below), whose sum is σ = 942339821976. Its totient is φ = 403074247680.

The previous prime is 616556611687. The next prime is 616556611799. The reversal of 616556611701 is 107116655616.

616556611701 is a `hidden beast` number, since 6 + 1 + 6 + 5 + 566 + 11 + 70 + 1 = 666.

616556611701 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28367317476 + 588189294225 = 168426^2 + 766935^2 .

It is not a de Polignac number, because 616556611701 - 2⁹ = 616556611189 is a prime.

It is a super-2 number, since 2×616556611701² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616556621701) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 120583521 + ... + 120588633.

It is an arithmetic number, because the mean of its divisors is an integer number (16827496821).

Almost surely, 2^616556611701 is an apocalyptic number.

It is an amenable number.

616556611701 is a deficient number, since it is larger than the sum of its proper divisors (325783210275).

616556611701 is an equidigital number, since it uses as much as digits as its factorization.

616556611701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305 (or 8290 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 616556611701 in words is "six hundred sixteen billion, five hundred fifty-six million, six hundred eleven thousand, seven hundred one".