1664001435 has 8 divisors (see below), whose sum is σ = 2662402320. Its totient is φ = 887467424.

The previous prime is 1664001397. The next prime is 1664001439. The reversal of 1664001435 is 5341004661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1664001435 - 2¹⁴ = 1663985051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1664001439) 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 7 ways as a sum of consecutive naturals, for example, 55466700 + ... + 55466729.

It is an arithmetic number, because the mean of its divisors is an integer number (332800290).

Almost surely, 2^1664001435 is an apocalyptic number.

1664001435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1664001435 is a deficient number, since it is larger than the sum of its proper divisors (998400885).

1664001435 is a wasteful number, since it uses less digits than its factorization.

1664001435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110933437.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1664001435 is about 40792.1736979044. The cubic root of 1664001435 is about 1184.9987680024.

The spelling of 1664001435 in words is "one billion, six hundred sixty-four million, one thousand, four hundred thirty-five".