1662612288 has 56 divisors (see below), whose sum is σ = 4411431360. Its totient is φ = 552637440.

The previous prime is 1662612283. The next prime is 1662612299. The reversal of 1662612288 is 8822162661.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662612283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56868 + ... + 80988.

It is an arithmetic number, because the mean of its divisors is an integer number (78775560).

Almost surely, 2^1662612288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662612288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2205715680).

1662612288 is an abundant number, since it is smaller than the sum of its proper divisors (2748819072).

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

1662612288 is a wasteful number, since it uses less digits than its factorization.

1662612288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24495 (or 24485 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 1662612288 is about 40775.1430163034. The cubic root of 1662612288 is about 1184.6689213770.

The spelling of 1662612288 in words is "one billion, six hundred sixty-two million, six hundred twelve thousand, two hundred eighty-eight".