1662028512 has 96 divisors (see below), whose sum is σ = 4555504800. Its totient is φ = 529901568.

The previous prime is 1662028471. The next prime is 1662028517. The reversal of 1662028512 is 2158202661.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662028517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300718 + ... + 306194.

It is an arithmetic number, because the mean of its divisors is an integer number (47453175).

Almost surely, 2^1662028512 is an apocalyptic number.

1662028512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662028512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2277752400).

1662028512 is an abundant number, since it is smaller than the sum of its proper divisors (2893476288).

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

1662028512 is a wasteful number, since it uses less digits than its factorization.

1662028512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1662028512 is about 40767.9839089450. The cubic root of 1662028512 is about 1184.5302515966.

The spelling of 1662028512 in words is "one billion, six hundred sixty-two million, twenty-eight thousand, five hundred twelve".