61662159488066 has 16 divisors (see below), whose sum is σ = 93251772354624. Its totient is φ = 30579012158544.

The previous prime is 61662159488051. The next prime is 61662159488107. The reversal of 61662159488066 is 66088495126616.

It is a junction number, because it is equal to n+sod(n) for n = 61662159487987 and 61662159488005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194038085 + ... + 194355608.

It is an arithmetic number, because the mean of its divisors is an integer number (5828235772164).

Almost surely, 2^{61662159488066} is an apocalyptic number.

61662159488066 is a deficient number, since it is larger than the sum of its proper divisors (31589612866558).

61662159488066 is a wasteful number, since it uses less digits than its factorization.

61662159488066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388394345.

The product of its (nonzero) digits is 179159040, while the sum is 68.

The spelling of 61662159488066 in words is "sixty-one trillion, six hundred sixty-two billion, one hundred fifty-nine million, four hundred eighty-eight thousand, sixty-six".