660930165734 has 4 divisors (see below), whose sum is σ = 991395248604. Its totient is φ = 330465082866.

The previous prime is 660930165671. The next prime is 660930165773. The reversal of 660930165734 is 437561039066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 437561039066 = 2 ⋅218780519533.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165232541432 + ... + 165232541435.

It is an arithmetic number, because the mean of its divisors is an integer number (247848812151).

Almost surely, 2^660930165734 is an apocalyptic number.

660930165734 is a deficient number, since it is larger than the sum of its proper divisors (330465082870).

660930165734 is a wasteful number, since it uses less digits than its factorization.

660930165734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330465082869.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 660930165734 in words is "six hundred sixty billion, nine hundred thirty million, one hundred sixty-five thousand, seven hundred thirty-four".