1602401655 has 16 divisors (see below), whose sum is σ = 2579575680. Its totient is φ = 849369888.

The previous prime is 1602401621. The next prime is 1602401701. The reversal of 1602401655 is 5561042061.

It is not a de Polignac number, because 1602401655 - 2¹⁹ = 1601877367 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 325245 + ... + 330134.

It is an arithmetic number, because the mean of its divisors is an integer number (161223480).

Almost surely, 2^1602401655 is an apocalyptic number.

1602401655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1602401655 is a deficient number, since it is larger than the sum of its proper divisors (977174025).

1602401655 is a wasteful number, since it uses less digits than its factorization.

1602401655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655550.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1602401655 is about 40030.0094304261. The cubic root of 1602401655 is about 1170.1920095423.

The spelling of 1602401655 in words is "one billion, six hundred two million, four hundred one thousand, six hundred fifty-five".