1185161883270 has 16 divisors (see below), whose sum is σ = 2844388519920. Its totient is φ = 316043168864.

The previous prime is 1185161883239. The next prime is 1185161883299. The reversal of 1185161883270 is 723881615811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19752698025 + ... + 19752698084.

It is an arithmetic number, because the mean of its divisors is an integer number (177774282495).

Almost surely, 2^{1185161883270} is an apocalyptic number.

1185161883270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1185161883270 is an abundant number, since it is smaller than the sum of its proper divisors (1659226636650).

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

1185161883270 is a wasteful number, since it uses less digits than its factorization.

1185161883270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39505396119.

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 1185161883270 in words is "one trillion, one hundred eighty-five billion, one hundred sixty-one million, eight hundred eighty-three thousand, two hundred seventy".