1161328128910 has 32 divisors (see below), whose sum is σ = 2120553473472. Its totient is φ = 457832847360.

The previous prime is 1161328128901. The next prime is 1161328128923. The reversal of 1161328128910 is 198218231611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1822894 + ... + 2376046.

It is an arithmetic number, because the mean of its divisors is an integer number (66267296046).

Almost surely, 2^{1161328128910} is an apocalyptic number.

1161328128910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161328128910 is a deficient number, since it is larger than the sum of its proper divisors (959225344562).

1161328128910 is a wasteful number, since it uses less digits than its factorization.

1161328128910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556188.

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 1161328128910 in words is "one trillion, one hundred sixty-one billion, three hundred twenty-eight million, one hundred twenty-eight thousand, nine hundred ten".