1356052051640 has 128 divisors (see below), whose sum is σ = 3586164019200. Its totient is φ = 454970718720.

The previous prime is 1356052051537. The next prime is 1356052051643. The reversal of 1356052051640 is 461502506531.

It is a junction number, because it is equal to n+sod(n) for n = 1356052051594 and 1356052051603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356052051643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12754139 + ... + 12860021.

It is an arithmetic number, because the mean of its divisors is an integer number (28016906400).

Almost surely, 2^{1356052051640} is an apocalyptic number.

1356052051640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1356052051640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793082009600).

1356052051640 is an abundant number, since it is smaller than the sum of its proper divisors (2230111967560).

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

1356052051640 is a wasteful number, since it uses less digits than its factorization.

1356052051640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108157 (or 108153 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1356052051640 in words is "one trillion, three hundred fifty-six billion, fifty-two million, fifty-one thousand, six hundred forty".