7667605505 has 24 divisors (see below), whose sum is σ = 10734674112. Its totient is φ = 5257729008.

The previous prime is 7667605493. The next prime is 7667605541. The reversal of 7667605505 is 5055067667.

It is not a de Polignac number, because 7667605505 - 2²² = 7663411201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7667605505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38414 + ... + 129656.

It is an arithmetic number, because the mean of its divisors is an integer number (447278088).

Almost surely, 2^7667605505 is an apocalyptic number.

It is an amenable number.

7667605505 is a deficient number, since it is larger than the sum of its proper divisors (3067068607).

7667605505 is an frugal number, since it uses more digits than its factorization.

7667605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91283 (or 91255 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 47.

The square root of 7667605505 is about 87564.8645576523. The cubic root of 7667605505 is about 1971.9077180785.

The spelling of 7667605505 in words is "seven billion, six hundred sixty-seven million, six hundred five thousand, five hundred five".