1655500066 has 16 divisors (see below), whose sum is σ = 2733857280. Its totient is φ = 745595280.

The previous prime is 1655500013. The next prime is 1655500073. The reversal of 1655500066 is 6600055561.

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, 342786 + ... + 347581.

It is an arithmetic number, because the mean of its divisors is an integer number (170866080).

Almost surely, 2^1655500066 is an apocalyptic number.

1655500066 is a deficient number, since it is larger than the sum of its proper divisors (1078357214).

1655500066 is a wasteful number, since it uses less digits than its factorization.

1655500066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690489.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1655500066 is about 40687.8368311711. The cubic root of 1655500066 is about 1182.9772719821.

The spelling of 1655500066 in words is "one billion, six hundred fifty-five million, five hundred thousand, sixty-six".