355056420645 has 24 divisors (see below), whose sum is σ = 621406196736. Its totient is φ = 187524942048.

The previous prime is 355056420601. The next prime is 355056420673. The reversal of 355056420645 is 546024650553.

355056420645 is a `hidden beast` number, since 3 + 5 + 5 + 0 + 564 + 20 + 64 + 5 = 666.

It is not a de Polignac number, because 355056420645 - 2¹¹ = 355056418597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 355056420645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38297029 + ... + 38306298.

It is an arithmetic number, because the mean of its divisors is an integer number (25891924864).

Almost surely, 2^355056420645 is an apocalyptic number.

It is an amenable number.

355056420645 is a deficient number, since it is larger than the sum of its proper divisors (266349776091).

355056420645 is a wasteful number, since it uses less digits than its factorization.

355056420645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76603441 (or 76603438 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 355056420645 in words is "three hundred fifty-five billion, fifty-six million, four hundred twenty thousand, six hundred forty-five".