321478141680 has 160 divisors (see below), whose sum is σ = 1122482829120. Its totient is φ = 84553113600.

The previous prime is 321478141631. The next prime is 321478141741. The reversal of 321478141680 is 86141874123.

321478141680 is a `hidden beast` number, since 3 + 2 + 1 + 478 + 14 + 168 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861721 + ... + 1177080.

It is an arithmetic number, because the mean of its divisors is an integer number (7015517682).

Almost surely, 2^321478141680 is an apocalyptic number.

321478141680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321478141680 is an abundant number, since it is smaller than the sum of its proper divisors (801004687440).

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

321478141680 is a wasteful number, since it uses less digits than its factorization.

321478141680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038896 (or 2038884 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 321478141680 in words is "three hundred twenty-one billion, four hundred seventy-eight million, one hundred forty-one thousand, six hundred eighty".