77173000066 has 8 divisors (see below), whose sum is σ = 116081951040. Its totient is φ = 38479016388.

The previous prime is 77173000031. The next prime is 77173000087. The reversal of 77173000066 is 66000037177.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 77172999989 and 77173000034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53740926 + ... + 53742361.

It is an arithmetic number, because the mean of its divisors is an integer number (14510243880).

Almost surely, 2^77173000066 is an apocalyptic number.

77173000066 is the 148491-st centered heptagonal number.

77173000066 is a deficient number, since it is larger than the sum of its proper divisors (38908950974).

77173000066 is a wasteful number, since it uses less digits than its factorization.

77173000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107483648.

The product of its (nonzero) digits is 37044, while the sum is 37.

The spelling of 77173000066 in words is "seventy-seven billion, one hundred seventy-three million, sixty-six", and thus it is an aban number.