61177384336 has 20 divisors (see below), whose sum is σ = 118541912832. Its totient is φ = 30585922976.

The previous prime is 61177384309. The next prime is 61177384337. The reversal of 61177384336 is 63348377116.

It is a self number, because there is not a number n which added to its sum of digits gives 61177384336.

It is not an unprimeable number, because it can be changed into a prime (61177384337) 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, 15405 + ... + 350131.

Almost surely, 2^61177384336 is an apocalyptic number.

It is an amenable number.

61177384336 is a deficient number, since it is larger than the sum of its proper divisors (57364528496).

61177384336 is a wasteful number, since it uses less digits than its factorization.

61177384336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346158 (or 346152 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 49.

The spelling of 61177384336 in words is "sixty-one billion, one hundred seventy-seven million, three hundred eighty-four thousand, three hundred thirty-six".