140823365105665 has 16 divisors (see below), whose sum is σ = 184394179356480. Its totient is φ = 102392774854720.

The previous prime is 140823365105627. The next prime is 140823365105693. The reversal of 140823365105665 is 566501563328041.

It is a de Polignac number, because none of the positive numbers 2^k-140823365105665 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302489659 + ... + 302954848.

It is an arithmetic number, because the mean of its divisors is an integer number (11524636209780).

Almost surely, 2^{140823365105665} is an apocalyptic number.

It is an amenable number.

140823365105665 is a deficient number, since it is larger than the sum of its proper divisors (43570814250815).

140823365105665 is a wasteful number, since it uses less digits than its factorization.

140823365105665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605448752.

The product of its (nonzero) digits is 15552000, while the sum is 55.

The spelling of 140823365105665 in words is "one hundred forty trillion, eight hundred twenty-three billion, three hundred sixty-five million, one hundred five thousand, six hundred sixty-five".