1662612480 has 440 divisors, whose sum is σ = 6301157280. Its totient is φ = 418037760.

The previous prime is 1662612473. The next prime is 1662612503. The reversal of 1662612480 is 842162661.

1662612480 is a `hidden beast` number, since 1 + 6 + 626 + 1 + 24 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 7879575 + ... + 7879785.

It is an arithmetic number, because the mean of its divisors is an integer number (14320812).

Almost surely, 2^1662612480 is an apocalyptic number.

1662612480 is a gapful number since it is divisible by the number (10) 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 1662612480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3150578640).

1662612480 is an abundant number, since it is smaller than the sum of its proper divisors (4638544800).

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

1662612480 is a wasteful number, since it uses less digits than its factorization.

1662612480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1662612480 is about 40775.1453706789. The cubic root of 1662612480 is about 1184.6689669792.

The spelling of 1662612480 in words is "one billion, six hundred sixty-two million, six hundred twelve thousand, four hundred eighty".