660680437058 has 32 divisors (see below), whose sum is σ = 1059305039040. Its totient is φ = 308131153920.

The previous prime is 660680437049. The next prime is 660680437063. The reversal of 660680437058 is 850734086066.

It is a super-2 number, since 2×660680437058² (a number of 24 digits) contains 22 as substring.

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, 1394213 + ... + 1806983.

It is an arithmetic number, because the mean of its divisors is an integer number (33103282470).

Almost surely, 2^660680437058 is an apocalyptic number.

660680437058 is a deficient number, since it is larger than the sum of its proper divisors (398624601982).

660680437058 is a wasteful number, since it uses less digits than its factorization.

660680437058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413442.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 660680437058 in words is "six hundred sixty billion, six hundred eighty million, four hundred thirty-seven thousand, fifty-eight".