1646055085281 has 8 divisors (see below), whose sum is σ = 2241436712064. Its totient is φ = 1074021757680.

The previous prime is 1646055085273. The next prime is 1646055085319. The reversal of 1646055085281 is 1825805506461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1646055085281 - 2³ = 1646055085273 is a prime.

It is a super-2 number, since 2×1646055085281² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1646055085231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5837074630 + ... + 5837074911.

It is an arithmetic number, because the mean of its divisors is an integer number (280179589008).

Almost surely, 2^{1646055085281} is an apocalyptic number.

It is an amenable number.

1646055085281 is a deficient number, since it is larger than the sum of its proper divisors (595381626783).

1646055085281 is a wasteful number, since it uses less digits than its factorization.

1646055085281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11674149591.

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 1646055085281 in words is "one trillion, six hundred forty-six billion, fifty-five million, eighty-five thousand, two hundred eighty-one".