1620482185920 has 112 divisors (see below), whose sum is σ = 5540802593760. Its totient is φ = 398887919616.

The previous prime is 1620482185909. The next prime is 1620482185937. The reversal of 1620482185920 is 295812840261.

It is a super-2 number, since 2×1620482185920² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1620482185920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64910685 + ... + 64935644.

It is an arithmetic number, because the mean of its divisors is an integer number (49471451730).

Almost surely, 2^{1620482185920} is an apocalyptic number.

1620482185920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1620482185920 is an abundant number, since it is smaller than the sum of its proper divisors (3920320407840).

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

1620482185920 is a wasteful number, since it uses less digits than its factorization.

1620482185920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129846362 (or 129846352 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 1620482185920 in words is "one trillion, six hundred twenty billion, four hundred eighty-two million, one hundred eighty-five thousand, nine hundred twenty".