1601788455 has 24 divisors (see below), whose sum is σ = 2785328208. Its totient is φ = 851550336.

The previous prime is 1601788429. The next prime is 1601788469. The reversal of 1601788455 is 5548871061.

It is not a de Polignac number, because 1601788455 - 2⁷ = 1601788327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1601788455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42777 + ... + 70946.

It is an arithmetic number, because the mean of its divisors is an integer number (116055342).

Almost surely, 2^1601788455 is an apocalyptic number.

1601788455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1601788455 is a deficient number, since it is larger than the sum of its proper divisors (1183539753).

1601788455 is a wasteful number, since it uses less digits than its factorization.

1601788455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114047 (or 114044 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 1601788455 is about 40022.3494437795. The cubic root of 1601788455 is about 1170.0427225250.

The spelling of 1601788455 in words is "one billion, six hundred one million, seven hundred eighty-eight thousand, four hundred fifty-five".