1662272512 has 132 divisors (see below), whose sum is σ = 3642374484. Its totient is φ = 757596160.

The previous prime is 1662272503. The next prime is 1662272531. The reversal of 1662272512 is 2152722661.

It can be written as a sum of positive squares in 6 ways, for example, as 5456896 + 1656815616 = 2336^2 + 40704^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12133308 + ... + 12133444.

Almost surely, 2^1662272512 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 1662272512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821187242).

1662272512 is an abundant number, since it is smaller than the sum of its proper divisors (1980101972).

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

1662272512 is a wasteful number, since it uses less digits than its factorization.

1662272512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 197 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 1662272512 is about 40770.9763434726. The cubic root of 1662272512 is about 1184.5882151507.

The spelling of 1662272512 in words is "one billion, six hundred sixty-two million, two hundred seventy-two thousand, five hundred twelve".