6213455550405 has 96 divisors (see below), whose sum is σ = 11357653788000. Its totient is φ = 3137524475904.

The previous prime is 6213455550377. The next prime is 6213455550431. The reversal of 6213455550405 is 5040555543126.

6213455550405 is a `hidden beast` number, since 6 + 2 + 1 + 3 + 4 + 55 + 550 + 40 + 5 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 192841304769 + 6020614245636 = 439137^2 + 2453694^2 .

It is not a de Polignac number, because 6213455550405 - 2⁷ = 6213455550277 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 134779539 + ... + 134825631.

It is an arithmetic number, because the mean of its divisors is an integer number (118308893625).

Almost surely, 2^{6213455550405} is an apocalyptic number.

It is an amenable number.

6213455550405 is a deficient number, since it is larger than the sum of its proper divisors (5144198237595).

6213455550405 is a wasteful number, since it uses less digits than its factorization.

6213455550405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48135 (or 48132 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 45.

The spelling of 6213455550405 in words is "six trillion, two hundred thirteen billion, four hundred fifty-five million, five hundred fifty thousand, four hundred five".