1960561011 has 8 divisors (see below), whose sum is σ = 2645576640. Its totient is φ = 1291293032.

The previous prime is 1960561007. The next prime is 1960561051. The reversal of 1960561011 is 1101650691.

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

It is a cyclic number.

It is not a de Polignac number, because 1960561011 - 2² = 1960561007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1960561011.

It is not an unprimeable number, because it can be changed into a prime (1960561051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3936621 + ... + 3937118.

It is an arithmetic number, because the mean of its divisors is an integer number (330697080).

Almost surely, 2^1960561011 is an apocalyptic number.

1960561011 is a deficient number, since it is larger than the sum of its proper divisors (685015629).

1960561011 is an equidigital number, since it uses as much as digits as its factorization.

1960561011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873825.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 1960561011 is about 44278.2227624371. Note that the first 3 decimals coincide. The cubic root of 1960561011 is about 1251.5843400582.

The spelling of 1960561011 in words is "one billion, nine hundred sixty million, five hundred sixty-one thousand, eleven".