73665042057766 has 64 divisors (see below), whose sum is σ = 115072308384768. Its totient is φ = 35345202151168.

The previous prime is 73665042057731. The next prime is 73665042057787. The reversal of 73665042057766 is 66775024056637.

It is a junction number, because it is equal to n+sod(n) for n = 73665042057698 and 73665042057707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5700298581 + ... + 5700311503.

It is an arithmetic number, because the mean of its divisors is an integer number (1798004818512).

Almost surely, 2^{73665042057766} is an apocalyptic number.

73665042057766 is a deficient number, since it is larger than the sum of its proper divisors (41407266327002).

73665042057766 is a wasteful number, since it uses less digits than its factorization.

73665042057766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18525.

The product of its (nonzero) digits is 266716800, while the sum is 64.

The spelling of 73665042057766 in words is "seventy-three trillion, six hundred sixty-five billion, forty-two million, fifty-seven thousand, seven hundred sixty-six".