701721560601 has 12 divisors (see below), whose sum is σ = 1030214168100. Its totient is φ = 460145285280.

The previous prime is 701721560599. The next prime is 701721560641. The reversal of 701721560601 is 106065127107.

701721560601 is a `hidden beast` number, since 7 + 0 + 17 + 21 + 560 + 60 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 86069477376 + 615652083225 = 293376^2 + 784635^2 .

It is not a de Polignac number, because 701721560601 - 2¹ = 701721560599 is a prime.

It is a super-2 number, since 2×701721560601² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (701721560641) 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 11 ways as a sum of consecutive naturals, for example, 639090126 + ... + 639091223.

It is an arithmetic number, because the mean of its divisors is an integer number (85851180675).

Almost surely, 2^701721560601 is an apocalyptic number.

It is an amenable number.

701721560601 is a deficient number, since it is larger than the sum of its proper divisors (328492607499).

701721560601 is a wasteful number, since it uses less digits than its factorization.

701721560601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278181416 (or 1278181413 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

Adding to 701721560601 its reverse (106065127107), we get a palindrome (807786687708).

The spelling of 701721560601 in words is "seven hundred one billion, seven hundred twenty-one million, five hundred sixty thousand, six hundred one".