1353220243650 has 144 divisors (see below), whose sum is σ = 3968073214560. Its totient is φ = 327895603200.

The previous prime is 1353220243649. The next prime is 1353220243693. The reversal of 1353220243650 is 563420223531.

1353220243650 is a `hidden beast` number, since 1 + 3 + 53 + 220 + 24 + 365 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10394661 + ... + 10524039.

It is an arithmetic number, because the mean of its divisors is an integer number (27556063990).

Almost surely, 2^{1353220243650} is an apocalyptic number.

1353220243650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1353220243650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1984036607280).

1353220243650 is an abundant number, since it is smaller than the sum of its proper divisors (2614852970910).

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

1353220243650 is a wasteful number, since it uses less digits than its factorization.

1353220243650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131521 (or 131513 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 1353220243650 in words is "one trillion, three hundred fifty-three billion, two hundred twenty million, two hundred forty-three thousand, six hundred fifty".