766475456551 has 32 divisors (see below), whose sum is σ = 909787852800. Its totient is φ = 632205475200.

The previous prime is 766475456497. The next prime is 766475456563. The reversal of 766475456551 is 155654574667.

It is a cyclic number.

It is not a de Polignac number, because 766475456551 - 2⁷ = 766475456423 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 766475456551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766475456951) 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, 4339065 + ... + 4512253.

It is an arithmetic number, because the mean of its divisors is an integer number (28430870400).

Almost surely, 2^766475456551 is an apocalyptic number.

766475456551 is a deficient number, since it is larger than the sum of its proper divisors (143312396249).

766475456551 is a wasteful number, since it uses less digits than its factorization.

766475456551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173479.

The product of its digits is 105840000, while the sum is 61.

The spelling of 766475456551 in words is "seven hundred sixty-six billion, four hundred seventy-five million, four hundred fifty-six thousand, five hundred fifty-one".