355056660 has 72 divisors (see below), whose sum is σ = 1230867456. Its totient is φ = 81155520.

The previous prime is 355056641. The next prime is 355056673. The reversal of 355056660 is 66650553.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139636 + ... + 142155.

Almost surely, 2^355056660 is an apocalyptic number.

355056660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

355056660 is an abundant number, since it is smaller than the sum of its proper divisors (875810796).

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

355056660 is a wasteful number, since it uses less digits than its factorization.

355056660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281813 (or 281808 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 355056660 is about 18842.9472217061. The cubic root of 355056660 is about 708.1075437516.

The spelling of 355056660 in words is "three hundred fifty-five million, fifty-six thousand, six hundred sixty".