77059877437666 has 16 divisors (see below), whose sum is σ = 119139445712448. Its totient is φ = 37364521496400.

The previous prime is 77059877437663. The next prime is 77059877437723. The reversal of 77059877437666 is 66673477895077.

It is a self number, because there is not a number n which added to its sum of digits gives 77059877437666.

It is not an unprimeable number, because it can be changed into a prime (77059877437663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4448148660 + ... + 4448165983.

It is an arithmetic number, because the mean of its divisors is an integer number (7446215357028).

Almost surely, 2^{77059877437666} is an apocalyptic number.

77059877437666 is a deficient number, since it is larger than the sum of its proper divisors (42079568274782).

77059877437666 is a wasteful number, since it uses less digits than its factorization.

77059877437666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896314777.

The product of its (nonzero) digits is 15682947840, while the sum is 82.

The spelling of 77059877437666 in words is "seventy-seven trillion, fifty-nine billion, eight hundred seventy-seven million, four hundred thirty-seven thousand, six hundred sixty-six".