7661323066 has 16 divisors (see below), whose sum is σ = 11961208800. Its totient is φ = 3675874608.

The previous prime is 7661323039. The next prime is 7661323073. The reversal of 7661323066 is 6603231667.

It is a super-2 number, since 2×7661323066² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395736 + ... + 414643.

It is an arithmetic number, because the mean of its divisors is an integer number (747575550).

Almost surely, 2^7661323066 is an apocalyptic number.

7661323066 is a deficient number, since it is larger than the sum of its proper divisors (4299885734).

7661323066 is a wasteful number, since it uses less digits than its factorization.

7661323066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810573.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 7661323066 is about 87528.9841481095. The cubic root of 7661323066 is about 1971.3690112226.

The spelling of 7661323066 in words is "seven billion, six hundred sixty-one million, three hundred twenty-three thousand, sixty-six".