76666534 has 16 divisors (see below), whose sum is σ = 135668736. Its totient is φ = 31797000.

The previous prime is 76666511. The next prime is 76666537. The reversal of 76666534 is 43566667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76666537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87892 + ... + 88759.

It is an arithmetic number, because the mean of its divisors is an integer number (8479296).

Almost surely, 2^76666534 is an apocalyptic number.

76666534 is a deficient number, since it is larger than the sum of its proper divisors (59002202).

76666534 is a wasteful number, since it uses less digits than its factorization.

76666534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176691.

The product of its digits is 544320, while the sum is 43.

The square root of 76666534 is about 8755.9427819053. The cubic root of 76666534 is about 424.8170543631.

The spelling of 76666534 in words is "seventy-six million, six hundred sixty-six thousand, five hundred thirty-four".