1355551451340 has 96 divisors (see below), whose sum is σ = 3865147781376. Its totient is φ = 354874141440.

The previous prime is 1355551451251. The next prime is 1355551451357. The reversal of 1355551451340 is 431541555531.

It is a junction number, because it is equal to n+sod(n) for n = 1355551451292 and 1355551451301.

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, 1560099 + ... + 2268261.

It is an arithmetic number, because the mean of its divisors is an integer number (40261956056).

Almost surely, 2^{1355551451340} is an apocalyptic number.

1355551451340 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 1355551451340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1932573890688).

1355551451340 is an abundant number, since it is smaller than the sum of its proper divisors (2509596330036).

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

1355551451340 is a wasteful number, since it uses less digits than its factorization.

1355551451340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708759 (or 708757 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 1355551451340 in words is "one trillion, three hundred fifty-five billion, five hundred fifty-one million, four hundred fifty-one thousand, three hundred forty".