61350166789 has 8 divisors (see below), whose sum is σ = 61679788160. Its totient is φ = 61021429056.

The previous prime is 61350166769. The next prime is 61350166819. The reversal of 61350166789 is 98766105316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61350166789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61350166769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81444 + ... + 359629.

It is an arithmetic number, because the mean of its divisors is an integer number (7709973520).

Almost surely, 2^61350166789 is an apocalyptic number.

It is an amenable number.

61350166789 is a deficient number, since it is larger than the sum of its proper divisors (329621371).

61350166789 is a wasteful number, since it uses less digits than its factorization.

61350166789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441819.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 61350166789 in words is "sixty-one billion, three hundred fifty million, one hundred sixty-six thousand, seven hundred eighty-nine".