61797166036 has 6 divisors (see below), whose sum is σ = 108145040570. Its totient is φ = 30898583016.

The previous prime is 61797166031. The next prime is 61797166103. The reversal of 61797166036 is 63066179716.

It can be written as a sum of positive squares in only one way, i.e., 41740941636 + 20056224400 = 204306^2 + 141620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61797166031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7724645751 + ... + 7724645758.

Almost surely, 2^61797166036 is an apocalyptic number.

It is an amenable number.

61797166036 is a deficient number, since it is larger than the sum of its proper divisors (46347874534).

61797166036 is a wasteful number, since it uses less digits than its factorization.

61797166036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15449291513 (or 15449291511 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 52.

The spelling of 61797166036 in words is "sixty-one billion, seven hundred ninety-seven million, one hundred sixty-six thousand, thirty-six".