406356653551 has 2 divisors, whose sum is σ = 406356653552. Its totient is φ = 406356653550.

The previous prime is 406356653539. The next prime is 406356653663. The reversal of 406356653551 is 155356653604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406356653551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 406356653495 and 406356653504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406356603551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203178326775 + 203178326776.

It is an arithmetic number, because the mean of its divisors is an integer number (203178326776).

Almost surely, 2^406356653551 is an apocalyptic number.

406356653551 is a deficient number, since it is larger than the sum of its proper divisors (1).

406356653551 is an equidigital number, since it uses as much as digits as its factorization.

406356653551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860000, while the sum is 49.

The spelling of 406356653551 in words is "four hundred six billion, three hundred fifty-six million, six hundred fifty-three thousand, five hundred fifty-one".