1662003023 has 8 divisors (see below), whose sum is σ = 1734998400. Its totient is φ = 1589068888.

The previous prime is 1662002987. The next prime is 1662003029. The reversal of 1662003023 is 3203002661.

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 1662003023 - 2⁶ = 1662002959 is a prime.

It is a super-2 number, since 2×1662003023² = 5524508096922277058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1662003023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662003029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45308 + ... + 73326.

It is an arithmetic number, because the mean of its divisors is an integer number (216874800).

Almost surely, 2^1662003023 is an apocalyptic number.

1662003023 is a deficient number, since it is larger than the sum of its proper divisors (72995377).

1662003023 is a wasteful number, since it uses less digits than its factorization.

1662003023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30621.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1662003023 is about 40767.6712972424. The cubic root of 1662003023 is about 1184.5241962159.

Adding to 1662003023 its reverse (3203002661), we get a palindrome (4865005684).

The spelling of 1662003023 in words is "one billion, six hundred sixty-two million, three thousand, twenty-three".