140254634666 has 8 divisors (see below), whose sum is σ = 213830836644. Its totient is φ = 68977689120.

The previous prime is 140254634579. The next prime is 140254634671. The reversal of 140254634666 is 666436452041.

140254634666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139032782641 + 1221852025 = 372871^2 + 34955^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 140254634666.

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 3 ways as a sum of consecutive naturals, for example, 574813955 + ... + 574814198.

Almost surely, 2^140254634666 is an apocalyptic number.

140254634666 is a deficient number, since it is larger than the sum of its proper divisors (73576201978).

140254634666 is a wasteful number, since it uses less digits than its factorization.

140254634666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149628216.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 140254634666 in words is "one hundred forty billion, two hundred fifty-four million, six hundred thirty-four thousand, six hundred sixty-six".