61180641600 has 168 divisors, whose sum is σ = 216163977120. Its totient is φ = 15059834880.

The previous prime is 61180641581. The next prime is 61180641647. The reversal of 61180641600 is 614608116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427830 + ... + 552629.

It is an arithmetic number, because the mean of its divisors is an integer number (1286690340).

Almost surely, 2^61180641600 is an apocalyptic number.

61180641600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61180641600 is an abundant number, since it is smaller than the sum of its proper divisors (154983335520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61180641600 is a wasteful number, since it uses less digits than its factorization.

61180641600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980497 (or 980482 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 61180641600 in words is "sixty-one billion, one hundred eighty million, six hundred forty-one thousand, six hundred".