140523555105561 has 16 divisors (see below), whose sum is σ = 195216322572288. Its totient is φ = 89813065059600.

The previous prime is 140523555105541. The next prime is 140523555105581. The reversal of 140523555105561 is 165501555325041.

It is an interprime number because it is at equal distance from previous prime (140523555105541) and next prime (140523555105581).

It is not a de Polignac number, because 140523555105561 - 2¹⁷ = 140523554974489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140523555105561.

It is not an unprimeable number, because it can be changed into a prime (140523555105511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7060765605 + ... + 7060785506.

It is an arithmetic number, because the mean of its divisors is an integer number (12201020160768).

Almost surely, 2^{140523555105561} is an apocalyptic number.

It is an amenable number.

140523555105561 is a deficient number, since it is larger than the sum of its proper divisors (54692767466727).

140523555105561 is a wasteful number, since it uses less digits than its factorization.

140523555105561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14121551252.

The product of its (nonzero) digits is 2250000, while the sum is 48.

The spelling of 140523555105561 in words is "one hundred forty trillion, five hundred twenty-three billion, five hundred fifty-five million, one hundred five thousand, five hundred sixty-one".