77401666843330 has 32 divisors (see below), whose sum is σ = 143139339495936. Its totient is φ = 30120480439104.

The previous prime is 77401666843301. The next prime is 77401666843463. The reversal of 77401666843330 is 3334866610477.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492988569 + ... + 493145548.

It is an arithmetic number, because the mean of its divisors is an integer number (4473104359248).

Almost surely, 2^{77401666843330} is an apocalyptic number.

77401666843330 is a deficient number, since it is larger than the sum of its proper divisors (65737672652606).

77401666843330 is a wasteful number, since it uses less digits than its factorization.

77401666843330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986134338.

The product of its (nonzero) digits is 36578304, while the sum is 58.

The spelling of 77401666843330 in words is "seventy-seven trillion, four hundred one billion, six hundred sixty-six million, eight hundred forty-three thousand, three hundred thirty".