402066203224551 has 4 divisors (see below), whose sum is σ = 536088270966072. Its totient is φ = 268044135483032.

The previous prime is 402066203224489. The next prime is 402066203224613. The reversal of 402066203224551 is 155422302660204.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (402066203224489) and next prime (402066203224613).

It is a cyclic number.

It is not a de Polignac number, because 402066203224551 - 2⁶ = 402066203224487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402066203224051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67011033870756 + ... + 67011033870761.

It is an arithmetic number, because the mean of its divisors is an integer number (134022067741518).

Almost surely, 2^{402066203224551} is an apocalyptic number.

402066203224551 is a deficient number, since it is larger than the sum of its proper divisors (134022067741521).

402066203224551 is a wasteful number, since it uses less digits than its factorization.

402066203224551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134022067741520.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 402066203224551 its reverse (155422302660204), we get a palindrome (557488505884755).

The spelling of 402066203224551 in words is "four hundred two trillion, sixty-six billion, two hundred three million, two hundred twenty-four thousand, five hundred fifty-one".