61462316661 has 4 divisors (see below), whose sum is σ = 81949755552. Its totient is φ = 40974877772.

The previous prime is 61462316653. The next prime is 61462316693. The reversal of 61462316661 is 16661326416.

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 61462316661 - 2³ = 61462316653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61462316761) 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, 10243719441 + ... + 10243719446.

It is an arithmetic number, because the mean of its divisors is an integer number (20487438888).

Almost surely, 2^61462316661 is an apocalyptic number.

It is an amenable number.

61462316661 is a deficient number, since it is larger than the sum of its proper divisors (20487438891).

61462316661 is a wasteful number, since it uses less digits than its factorization.

61462316661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20487438890.

The product of its digits is 186624, while the sum is 42.

The spelling of 61462316661 in words is "sixty-one billion, four hundred sixty-two million, three hundred sixteen thousand, six hundred sixty-one".