1655770455 has 12 divisors (see below), whose sum is σ = 2870002200. Its totient is φ = 883077552.

The previous prime is 1655770411. The next prime is 1655770489. The reversal of 1655770455 is 5540775561.

It is not a de Polignac number, because 1655770455 - 2⁷ = 1655770327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 36794899 = 1655770455 / (1 + 6 + 5 + 5 + 7 + 7 + 0 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1655770455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18397405 + ... + 18397494.

It is an arithmetic number, because the mean of its divisors is an integer number (239166850).

Almost surely, 2^1655770455 is an apocalyptic number.

1655770455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1655770455 is a deficient number, since it is larger than the sum of its proper divisors (1214231745).

1655770455 is a wasteful number, since it uses less digits than its factorization.

1655770455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36794910 (or 36794907 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The square root of 1655770455 is about 40691.1594206899. The cubic root of 1655770455 is about 1183.0416727907.

The spelling of 1655770455 in words is "one billion, six hundred fifty-five million, seven hundred seventy thousand, four hundred fifty-five".