83661137610748 has 12 divisors (see below), whose sum is σ = 149522033176992. Its totient is φ = 40940556703040.

The previous prime is 83661137610641. The next prime is 83661137610751. The reversal of 83661137610748 is 84701673116638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222503025373 + ... + 222503025748.

It is an arithmetic number, because the mean of its divisors is an integer number (12460169431416).

Almost surely, 2^{83661137610748} is an apocalyptic number.

It is an amenable number.

83661137610748 is a deficient number, since it is larger than the sum of its proper divisors (65860895566244).

83661137610748 is a wasteful number, since it uses less digits than its factorization.

83661137610748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445006051172 (or 445006051170 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 83661137610748 in words is "eighty-three trillion, six hundred sixty-one billion, one hundred thirty-seven million, six hundred ten thousand, seven hundred forty-eight".