61163365442 has 32 divisors (see below), whose sum is σ = 99028416240. Its totient is φ = 28226580480.

The previous prime is 61163365429. The next prime is 61163365453. The reversal of 61163365442 is 24456336116.

It can be written as a sum of positive squares in 8 ways, for example, as 33284718481 + 27878646961 = 182441^2 + 166969^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61163365442.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 655184 + ... + 742692.

Almost surely, 2^61163365442 is an apocalyptic number.

61163365442 is a deficient number, since it is larger than the sum of its proper divisors (37865050798).

61163365442 is a wasteful number, since it uses less digits than its factorization.

61163365442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87926.

The product of its digits is 311040, while the sum is 41.

The spelling of 61163365442 in words is "sixty-one billion, one hundred sixty-three million, three hundred sixty-five thousand, four hundred forty-two".