61617170760 has 32 divisors (see below), whose sum is σ = 184851512640. Its totient is φ = 16431245504.

The previous prime is 61617170749. The next prime is 61617170779. The reversal of 61617170760 is 6707171616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256738092 + ... + 256738331.

It is an arithmetic number, because the mean of its divisors is an integer number (5776609770).

Almost surely, 2^61617170760 is an apocalyptic number.

61617170760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61617170760 is an abundant number, since it is smaller than the sum of its proper divisors (123234341880).

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

61617170760 is a wasteful number, since it uses less digits than its factorization.

61617170760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513476437 (or 513476433 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 42.

The spelling of 61617170760 in words is "sixty-one billion, six hundred seventeen million, one hundred seventy thousand, seven hundred sixty".