355426140645 has 56 divisors (see below), whose sum is σ = 640048339800. Its totient is φ = 189390514176.

The previous prime is 355426140607. The next prime is 355426140659. The reversal of 355426140645 is 546041624553.

355426140645 is a `hidden beast` number, since 3 + 5 + 542 + 6 + 1 + 40 + 64 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 83777409 + 355342363236 = 9153^2 + 596106^2 .

It is not a de Polignac number, because 355426140645 - 2⁹ = 355426140133 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 355426140645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4072021 + ... + 4158389.

Almost surely, 2^355426140645 is an apocalyptic number.

It is an amenable number.

355426140645 is a deficient number, since it is larger than the sum of its proper divisors (284622199155).

355426140645 is an equidigital number, since it uses as much as digits as its factorization.

355426140645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87521 (or 87506 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 355426140645 in words is "three hundred fifty-five billion, four hundred twenty-six million, one hundred forty thousand, six hundred forty-five".