2146667472442 has 4 divisors (see below), whose sum is σ = 3220001208666. Its totient is φ = 1073333736220.

The previous prime is 2146667472401. The next prime is 2146667472457. The reversal of 2146667472442 is 2442747666412.

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

It can be written as a sum of positive squares in only one way, i.e., 1695232644121 + 451434828321 = 1302011^2 + 671889^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536666868109 + ... + 536666868112.

Almost surely, 2^{2146667472442} is an apocalyptic number.

2146667472442 is a deficient number, since it is larger than the sum of its proper divisors (1073333736224).

2146667472442 is a wasteful number, since it uses less digits than its factorization.

2146667472442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073333736223.

The product of its digits is 21676032, while the sum is 55.

The spelling of 2146667472442 in words is "two trillion, one hundred forty-six billion, six hundred sixty-seven million, four hundred seventy-two thousand, four hundred forty-two".