402446505666121 has 64 divisors (see below), whose sum is σ = 526180838400000. Its totient is φ = 299471996897280.

The previous prime is 402446505666071. The next prime is 402446505666157. The reversal of 402446505666121 is 121666505644204.

It is a cyclic number.

It is not a de Polignac number, because 402446505666121 - 2³³ = 402437915731529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402446505666421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41907760 + ... + 50607838.

It is an arithmetic number, because the mean of its divisors is an integer number (8221575600000).

Almost surely, 2^{402446505666121} is an apocalyptic number.

402446505666121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

402446505666121 is a deficient number, since it is larger than the sum of its proper divisors (123734332733879).

402446505666121 is a wasteful number, since it uses less digits than its factorization.

402446505666121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8700662.

The product of its (nonzero) digits is 8294400, while the sum is 52.

The spelling of 402446505666121 in words is "four hundred two trillion, four hundred forty-six billion, five hundred five million, six hundred sixty-six thousand, one hundred twenty-one".