1960720641 has 32 divisors (see below), whose sum is σ = 3204489600. Its totient is φ = 1174947840.

The previous prime is 1960720633. The next prime is 1960720649. The reversal of 1960720641 is 1460270691.

1960720641 is a `hidden beast` number, since 1 + 9 + 6 + 0 + 7 + 2 + 0 + 641 = 666.

It is an interprime number because it is at equal distance from previous prime (1960720633) and next prime (1960720649).

It is not a de Polignac number, because 1960720641 - 2³ = 1960720633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1960720596 and 1960720605.

It is not an unprimeable number, because it can be changed into a prime (1960720649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10656 + ... + 63521.

It is an arithmetic number, because the mean of its divisors is an integer number (100140300).

Almost surely, 2^1960720641 is an apocalyptic number.

1960720641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1960720641 is a deficient number, since it is larger than the sum of its proper divisors (1243768959).

1960720641 is a wasteful number, since it uses less digits than its factorization.

1960720641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74286 (or 74280 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1960720641 is about 44280.0253048708. The cubic root of 1960720641 is about 1251.6183073742.

The spelling of 1960720641 in words is "one billion, nine hundred sixty million, seven hundred twenty thousand, six hundred forty-one".