1161773470980 has 144 divisors (see below), whose sum is σ = 3851709249024. Its totient is φ = 282176455680.

The previous prime is 1161773470973. The next prime is 1161773470981. The reversal of 1161773470980 is 890743771611.

It is a happy number.

1161773470980 is a `hidden beast` number, since 1 + 1 + 6 + 17 + 73 + 470 + 98 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (1161773470981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6028762 + ... + 6218481.

It is an arithmetic number, because the mean of its divisors is an integer number (26747980896).

Almost surely, 2^{1161773470980} is an apocalyptic number.

1161773470980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161773470980 is an abundant number, since it is smaller than the sum of its proper divisors (2689935778044).

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

1161773470980 is a wasteful number, since it uses less digits than its factorization.

1161773470980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247306 (or 12247301 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 1161773470980 in words is "one trillion, one hundred sixty-one billion, seven hundred seventy-three million, four hundred seventy thousand, nine hundred eighty".