61560660701 has 4 divisors (see below), whose sum is σ = 61570317600. Its totient is φ = 61551003804.

The previous prime is 61560660697. The next prime is 61560660703. The reversal of 61560660701 is 10706606516.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61560660701 - 2² = 61560660697 is a prime.

It is a super-2 number, since 2×61560660701² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61560660703) 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 3 ways as a sum of consecutive naturals, for example, 4818881 + ... + 4831638.

It is an arithmetic number, because the mean of its divisors is an integer number (15392579400).

Almost surely, 2^61560660701 is an apocalyptic number.

It is an amenable number.

61560660701 is a deficient number, since it is larger than the sum of its proper divisors (9656899).

61560660701 is an equidigital number, since it uses as much as digits as its factorization.

61560660701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656898.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 61560660701 in words is "sixty-one billion, five hundred sixty million, six hundred sixty thousand, seven hundred one".