1640410455 has 16 divisors (see below), whose sum is σ = 2625158880. Its totient is φ = 874718208.

The previous prime is 1640410411. The next prime is 1640410459. The reversal of 1640410455 is 5540140461.

It is not a de Polignac number, because 1640410455 - 2¹³ = 1640402263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1640410459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147531 + ... + 158259.

It is an arithmetic number, because the mean of its divisors is an integer number (164072430).

Almost surely, 2^1640410455 is an apocalyptic number.

1640410455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1640410455 is a deficient number, since it is larger than the sum of its proper divisors (984748425).

1640410455 is a wasteful number, since it uses less digits than its factorization.

1640410455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20930.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1640410455 is about 40501.9808774830. The cubic root of 1640410455 is about 1179.3720816555.

The spelling of 1640410455 in words is "one billion, six hundred forty million, four hundred ten thousand, four hundred fifty-five".