61101166505000 has 80 divisors (see below), whose sum is σ = 151581211750980. Its totient is φ = 23002792064000.

The previous prime is 61101166504979. The next prime is 61101166505009. The reversal of 61101166505000 is 50566110116.

It can be written as a sum of positive squares in 10 ways, for example, as 14247771242884 + 46853395262116 = 3774622^2 + 6844954^2 .

It is not an unprimeable number, because it can be changed into a prime (61101166505009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 359333627 + ... + 359503626.

Almost surely, 2^{61101166505000} is an apocalyptic number.

It is an amenable number.

61101166505000 is an abundant number, since it is smaller than the sum of its proper divisors (90480045245980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61101166505000 is a wasteful number, since it uses less digits than its factorization.

61101166505000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718837296 (or 718837277 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 61101166505000 in words is "sixty-one trillion, one hundred one billion, one hundred sixty-six million, five hundred five thousand".