406563783553 has 16 divisors (see below), whose sum is σ = 415272096000. Its totient is φ = 397954926720.

The previous prime is 406563783449. The next prime is 406563783559. The reversal of 406563783553 is 355387365604.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406563783553 is a prime.

It is a super-2 number, since 2×406563783553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406563783494 and 406563783503.

It is not an unprimeable number, because it can be changed into a prime (406563783559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6123213 + ... + 6189253.

It is an arithmetic number, because the mean of its divisors is an integer number (25954506000).

Almost surely, 2^406563783553 is an apocalyptic number.

It is an amenable number.

406563783553 is a deficient number, since it is larger than the sum of its proper divisors (8708312447).

406563783553 is a wasteful number, since it uses less digits than its factorization.

406563783553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66792.

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 406563783553 in words is "four hundred six billion, five hundred sixty-three million, seven hundred eighty-three thousand, five hundred fifty-three".