1620249170160 has 80 divisors (see below), whose sum is σ = 5195971499040. Its totient is φ = 417167600640.

The previous prime is 1620249170159. The next prime is 1620249170167. The reversal of 1620249170160 is 610719420261.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620249170167) by changing a digit.

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, 116390251 + ... + 116404170.

It is an arithmetic number, because the mean of its divisors is an integer number (64949643738).

Almost surely, 2^{1620249170160} is an apocalyptic number.

1620249170160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1620249170160 is an abundant number, since it is smaller than the sum of its proper divisors (3575722328880).

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

1620249170160 is a wasteful number, since it uses less digits than its factorization.

1620249170160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232794466 (or 232794460 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 1620249170160 in words is "one trillion, six hundred twenty billion, two hundred forty-nine million, one hundred seventy thousand, one hundred sixty".