140265754447566 has 128 divisors (see below), whose sum is σ = 320018272243200. Its totient is φ = 40618784194560.

The previous prime is 140265754447531. The next prime is 140265754447639. The reversal of 140265754447566 is 665744457562041.

It is a super-2 number, since 2×140265754447566² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 140265754447497 and 140265754447506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17496270 + ... + 24220878.

It is an arithmetic number, because the mean of its divisors is an integer number (2500142751900).

Almost surely, 2^{140265754447566} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140265754447566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160009136121600).

140265754447566 is an abundant number, since it is smaller than the sum of its proper divisors (179752517795634).

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

140265754447566 is a wasteful number, since it uses less digits than its factorization.

140265754447566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6724834.

The product of its (nonzero) digits is 677376000, while the sum is 66.

The spelling of 140265754447566 in words is "one hundred forty trillion, two hundred sixty-five billion, seven hundred fifty-four million, four hundred forty-seven thousand, five hundred sixty-six".