766053263561 has 12 divisors (see below), whose sum is σ = 812726913024. Its totient is φ = 721934947800.

The previous prime is 766053263489. The next prime is 766053263567. The reversal of 766053263561 is 165362350667.

It is not a de Polignac number, because 766053263561 - 2³⁰ = 764979521737 is a prime.

It is a super-2 number, since 2×766053263561² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766053263567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5486105 + ... + 5624006.

It is an arithmetic number, because the mean of its divisors is an integer number (67727242752).

Almost surely, 2^766053263561 is an apocalyptic number.

It is an amenable number.

766053263561 is a deficient number, since it is larger than the sum of its proper divisors (46673649463).

766053263561 is a wasteful number, since it uses less digits than its factorization.

766053263561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110340 (or 11110321 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 766053263561 in words is "seven hundred sixty-six billion, fifty-three million, two hundred sixty-three thousand, five hundred sixty-one".