1355820606 has 160 divisors (see below), whose sum is σ = 3654858240. Its totient is φ = 367291584.

The previous prime is 1355820593. The next prime is 1355820623. The reversal of 1355820606 is 6060285531.

1355820606 is a `hidden beast` number, since 13 + 5 + 582 + 0 + 60 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5920500 + ... + 5920728.

It is an arithmetic number, because the mean of its divisors is an integer number (22842864).

Almost surely, 2^1355820606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1355820606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827429120).

1355820606 is an abundant number, since it is smaller than the sum of its proper divisors (2299037634).

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

1355820606 is a wasteful number, since it uses less digits than its factorization.

1355820606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1355820606 is about 36821.4693623163. The cubic root of 1355820606 is about 1106.7955645131.

The spelling of 1355820606 in words is "one billion, three hundred fifty-five million, eight hundred twenty thousand, six hundred six".