1355166450 has 240 divisors, whose sum is σ = 4326553440. Its totient is φ = 311040000.

The previous prime is 1355166443. The next prime is 1355166467. The reversal of 1355166450 is 546615531.

1355166450 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 1 + 6 + 645 + 0 = 666.

It is a super-2 number, since 2×1355166450² = 3672952214411205000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 845650 + ... + 847250.

It is an arithmetic number, because the mean of its divisors is an integer number (18027306).

Almost surely, 2^1355166450 is an apocalyptic number.

1355166450 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 1355166450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2163276720).

1355166450 is an abundant number, since it is smaller than the sum of its proper divisors (2971386990).

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

1355166450 is a wasteful number, since it uses less digits than its factorization.

1355166450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1355166450 is about 36812.5854837717. The cubic root of 1355166450 is about 1106.6175337253.

The spelling of 1355166450 in words is "one billion, three hundred fifty-five million, one hundred sixty-six thousand, four hundred fifty".