68101156705 has 32 divisors (see below), whose sum is σ = 84721140000. Its totient is φ = 52519034880.

The previous prime is 68101156693. The next prime is 68101156709. The reversal of 68101156705 is 50765110186.

It can be written as a sum of positive squares in 16 ways, for example, as 8268083041 + 59833073664 = 90929^2 + 244608^2 .

It is not a de Polignac number, because 68101156705 - 2¹³ = 68101148513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68101156709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20188399 + ... + 20191771.

It is an arithmetic number, because the mean of its divisors is an integer number (2647535625).

Almost surely, 2^68101156705 is an apocalyptic number.

It is an amenable number.

68101156705 is a deficient number, since it is larger than the sum of its proper divisors (16619983295).

68101156705 is a wasteful number, since it uses less digits than its factorization.

68101156705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741.

The product of its (nonzero) digits is 50400, while the sum is 40.

The spelling of 68101156705 in words is "sixty-eight billion, one hundred one million, one hundred fifty-six thousand, seven hundred five".