70640708068136 has 8 divisors (see below), whose sum is σ = 132451327627770. Its totient is φ = 35320354034064.

The previous prime is 70640708068123. The next prime is 70640708068243. The reversal of 70640708068136 is 63186080704607.

It can be written as a sum of positive squares in only one way, i.e., 70625703288100 + 15004780036 = 8403910^2 + 122494^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×70640708068136² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4415044254251 + ... + 4415044254266.

Almost surely, 2^{70640708068136} is an apocalyptic number.

It is an amenable number.

70640708068136 is a deficient number, since it is larger than the sum of its proper divisors (61810619559634).

70640708068136 is a wasteful number, since it uses less digits than its factorization.

70640708068136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830088508523 (or 8830088508519 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 70640708068136 in words is "seventy trillion, six hundred forty billion, seven hundred eight million, sixty-eight thousand, one hundred thirty-six".