77502233666 has 16 divisors (see below), whose sum is σ = 136577363328. Its totient is φ = 32518419600.

The previous prime is 77502233639. The next prime is 77502233701. The reversal of 77502233666 is 66633220577.

It is a self number, because there is not a number n which added to its sum of digits gives 77502233666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135493130 + ... + 135493701.

It is an arithmetic number, because the mean of its divisors is an integer number (8536085208).

Almost surely, 2^77502233666 is an apocalyptic number.

77502233666 is a deficient number, since it is larger than the sum of its proper divisors (59075129662).

77502233666 is a wasteful number, since it uses less digits than its factorization.

77502233666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270986857.

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 77502233666 in words is "seventy-seven billion, five hundred two million, two hundred thirty-three thousand, six hundred sixty-six".