61770101065 has 16 divisors (see below), whose sum is σ = 78126930000. Its totient is φ = 46811844352.

The previous prime is 61770101023. The next prime is 61770101077. The reversal of 61770101065 is 56010107716.

It can be written as a sum of positive squares in 8 ways, for example, as 350887824 + 61419213241 = 18732^2 + 247829^2 .

It is a cyclic number.

It is not a de Polignac number, because 61770101065 - 2¹³ = 61770092873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61770101065.

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 15 ways as a sum of consecutive naturals, for example, 4011190 + ... + 4026559.

It is an arithmetic number, because the mean of its divisors is an integer number (4882933125).

Almost surely, 2^61770101065 is an apocalyptic number.

It is an amenable number.

61770101065 is a deficient number, since it is larger than the sum of its proper divisors (16356828935).

61770101065 is a wasteful number, since it uses less digits than its factorization.

61770101065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037836.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 61770101065 in words is "sixty-one billion, seven hundred seventy million, one hundred one thousand, sixty-five".