140066166206505 has 64 divisors (see below), whose sum is σ = 282015975241728. Its totient is φ = 57665303477760.

The previous prime is 140066166206471. The next prime is 140066166206557. The reversal of 140066166206505 is 505602661660041.

It is not a de Polignac number, because 140066166206505 - 2⁷ = 140066166206377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566555892 + ... + 566803061.

It is an arithmetic number, because the mean of its divisors is an integer number (4406499613152).

Almost surely, 2^{140066166206505} is an apocalyptic number.

140066166206505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140066166206505 is an abundant number, since it is smaller than the sum of its proper divisors (141949809035223).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140066166206505 is a wasteful number, since it uses less digits than its factorization.

140066166206505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133359086.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 140066166206505 in words is "one hundred forty trillion, sixty-six billion, one hundred sixty-six million, two hundred six thousand, five hundred five".