2661001662 has 32 divisors (see below), whose sum is σ = 6006026880. Its totient is φ = 778557920.

The previous prime is 2661001627. The next prime is 2661001667.

2661001662 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661001667) 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, 693228 + ... + 697055.

It is an arithmetic number, because the mean of its divisors is an integer number (187688340).

Almost surely, 2^2661001662 is an apocalyptic number.

2661001662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2661001662 is an abundant number, since it is smaller than the sum of its proper divisors (3345025218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2661001662 is a wasteful number, since it uses less digits than its factorization.

2661001662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390328.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2661001662 is about 51584.8976154843. The cubic root of 2661001662 is about 1385.7398788050.

It can be divided in two parts, 266100 and 1662, that added together give a palindrome (267762).

The spelling of 2661001662 in words is "two billion, six hundred sixty-one million, one thousand, six hundred sixty-two".