1662001001662 has 32 divisors (see below), whose sum is σ = 2546503725600. Its totient is φ = 813358656000.

The previous prime is 1662001001659. The next prime is 1662001001669. The reversal of 1662001001662 is 2661001002661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662001001669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163432914 + ... + 163443082.

It is an arithmetic number, because the mean of its divisors is an integer number (79578241425).

Almost surely, 2^{1662001001662} is an apocalyptic number.

1662001001662 is a deficient number, since it is larger than the sum of its proper divisors (884502723938).

1662001001662 is a wasteful number, since it uses less digits than its factorization.

1662001001662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19452.

The product of its (nonzero) digits is 5184, while the sum is 31.

Subtracting 1662001001662 from its reverse (2661001002661), we obtain a palindrome (999000000999).

The spelling of 1662001001662 in words is "one trillion, six hundred sixty-two billion, one million, one thousand, six hundred sixty-two".