730656566 has 16 divisors (see below), whose sum is σ = 1200471840. Its totient is φ = 331981440.

The previous prime is 730656551. The next prime is 730656581. The reversal of 730656566 is 665656037.

It is an interprime number because it is at equal distance from previous prime (730656551) and next prime (730656581).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369530 + ... + 371501.

It is an arithmetic number, because the mean of its divisors is an integer number (75029490).

Almost surely, 2^730656566 is an apocalyptic number.

730656566 is a deficient number, since it is larger than the sum of its proper divisors (469815274).

730656566 is a wasteful number, since it uses less digits than its factorization.

730656566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741079.

The product of its (nonzero) digits is 680400, while the sum is 44.

The square root of 730656566 is about 27030.6597403763. The cubic root of 730656566 is about 900.6811986825.

The spelling of 730656566 in words is "seven hundred thirty million, six hundred fifty-six thousand, five hundred sixty-six".