355206660481 has 32 divisors (see below), whose sum is σ = 386348064768. Its totient is φ = 325655225280.

The previous prime is 355206660469. The next prime is 355206660491. The reversal of 355206660481 is 184066602553.

It is a cyclic number.

It is not a de Polignac number, because 355206660481 - 2³⁵ = 320846922113 is a prime.

It is a super-2 number, since 2×355206660481² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355206660401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143982010 + ... + 143984476.

It is an arithmetic number, because the mean of its divisors is an integer number (12073377024).

Almost surely, 2^355206660481 is an apocalyptic number.

It is an amenable number.

355206660481 is a deficient number, since it is larger than the sum of its proper divisors (31141404287).

355206660481 is a wasteful number, since it uses less digits than its factorization.

355206660481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4981.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 355206660481 in words is "three hundred fifty-five billion, two hundred six million, six hundred sixty thousand, four hundred eighty-one".