140555566454634 has 128 divisors (see below), whose sum is σ = 320238102562560. Its totient is φ = 45669973478400.

The previous prime is 140555566454623. The next prime is 140555566454683. The reversal of 140555566454634 is 436454665555041.

140555566454634 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 5 + 5 + 56 + 6 + 4 + 546 + 34 = 666.

It is a super-2 number, since 2×140555566454634² (a number of 29 digits) contains 22 as substring.

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, 21714127222 + ... + 21714133694.

It is an arithmetic number, because the mean of its divisors is an integer number (2501860176270).

Almost surely, 2^{140555566454634} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140555566454634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160119051281280).

140555566454634 is an abundant number, since it is smaller than the sum of its proper divisors (179682536107926).

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

140555566454634 is a wasteful number, since it uses less digits than its factorization.

140555566454634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13413 (or 13407 counting only the distinct ones).

The product of its (nonzero) digits is 518400000, while the sum is 63.

The spelling of 140555566454634 in words is "one hundred forty trillion, five hundred fifty-five billion, five hundred sixty-six million, four hundred fifty-four thousand, six hundred thirty-four".