1960616721 has 8 divisors (see below), whose sum is σ = 2987606464. Its totient is φ = 1120352400.

The previous prime is 1960616711. The next prime is 1960616741. The reversal of 1960616721 is 1276160691.

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

It is not a de Polignac number, because 1960616721 - 2¹⁵ = 1960583953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1960616721.

It is not an unprimeable number, because it can be changed into a prime (1960616711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46681330 + ... + 46681371.

It is an arithmetic number, because the mean of its divisors is an integer number (373450808).

Almost surely, 2^1960616721 is an apocalyptic number.

It is an amenable number.

1960616721 is a deficient number, since it is larger than the sum of its proper divisors (1026989743).

1960616721 is an equidigital number, since it uses as much as digits as its factorization.

1960616721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93362711.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1960616721 is about 44278.8518482582. The cubic root of 1960616721 is about 1251.5961946758.

The spelling of 1960616721 in words is "one billion, nine hundred sixty million, six hundred sixteen thousand, seven hundred twenty-one".