2121458005466 has 8 divisors (see below), whose sum is σ = 3182651107380. Its totient is φ = 1060574303008.

The previous prime is 2121458005351. The next prime is 2121458005529. The reversal of 2121458005466 is 6645008541212.

It can be written as a sum of positive squares in 2 ways, for example, as 1318604373025 + 802853632441 = 1148305^2 + 896021^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77332721 + ... + 77360148.

Almost surely, 2^{2121458005466} is an apocalyptic number.

2121458005466 is a deficient number, since it is larger than the sum of its proper divisors (1061193101914).

2121458005466 is a wasteful number, since it uses less digits than its factorization.

2121458005466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154699728.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 2121458005466 in words is "two trillion, one hundred twenty-one billion, four hundred fifty-eight million, five thousand, four hundred sixty-six".