7661016775 has 12 divisors (see below), whose sum is σ = 9501624000. Its totient is φ = 6127546880.

The previous prime is 7661016749. The next prime is 7661016791. The reversal of 7661016775 is 5776101667.

It is not a de Polignac number, because 7661016775 - 2⁵ = 7661016743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102951 + ... + 160999.

It is an arithmetic number, because the mean of its divisors is an integer number (791802000).

Almost surely, 2^7661016775 is an apocalyptic number.

7661016775 is a deficient number, since it is larger than the sum of its proper divisors (1840607225).

7661016775 is a wasteful number, since it uses less digits than its factorization.

7661016775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63338 (or 63333 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 46.

The square root of 7661016775 is about 87527.2344759047. The cubic root of 7661016775 is about 1971.3427398407.

The spelling of 7661016775 in words is "seven billion, six hundred sixty-one million, sixteen thousand, seven hundred seventy-five".