1645310215060 has 48 divisors (see below), whose sum is σ = 3492639060624. Its totient is φ = 650990850048.

The previous prime is 1645310215007. The next prime is 1645310215111. The reversal of 1645310215060 is 605120135461.

It can be written as a sum of positive squares in 8 ways, for example, as 81239820676 + 1564070394384 = 285026^2 + 1250628^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3415462 + ... + 3867298.

It is an arithmetic number, because the mean of its divisors is an integer number (72763313763).

Almost surely, 2^{1645310215060} is an apocalyptic number.

1645310215060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1645310215060 is an abundant number, since it is smaller than the sum of its proper divisors (1847328845564).

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

1645310215060 is a wasteful number, since it uses less digits than its factorization.

1645310215060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453820 (or 453818 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 1645310215060 in words is "one trillion, six hundred forty-five billion, three hundred ten million, two hundred fifteen thousand, sixty".