142451450564666 has 16 divisors (see below), whose sum is σ = 215568767084904. Its totient is φ = 70595198628864.

The previous prime is 142451450564651. The next prime is 142451450564671. The reversal of 142451450564666 is 666465054154241.

It can be written as a sum of positive squares in 4 ways, for example, as 134348290538641 + 8103160026025 = 11590871^2 + 2846605^2 .

It is a super-4 number, since 4×142451450564666⁴ (a number of 58 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98031026 + ... + 99473538.

Almost surely, 2^{142451450564666} is an apocalyptic number.

142451450564666 is a deficient number, since it is larger than the sum of its proper divisors (73117316520238).

142451450564666 is a wasteful number, since it uses less digits than its factorization.

142451450564666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879585.

The product of its (nonzero) digits is 82944000, while the sum is 59.

The spelling of 142451450564666 in words is "one hundred forty-two trillion, four hundred fifty-one billion, four hundred fifty million, five hundred sixty-four thousand, six hundred sixty-six".