140506786553 has 4 divisors (see below), whose sum is σ = 160579184640. Its totient is φ = 120434388468.

The previous prime is 140506786499. The next prime is 140506786613. The reversal of 140506786553 is 355687605041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140506786553 - 2¹⁸ = 140506524409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140506786153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10036199033 + ... + 10036199046.

It is an arithmetic number, because the mean of its divisors is an integer number (40144796160).

Almost surely, 2^140506786553 is an apocalyptic number.

It is an amenable number.

140506786553 is a deficient number, since it is larger than the sum of its proper divisors (20072398087).

140506786553 is an equidigital number, since it uses as much as digits as its factorization.

140506786553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20072398086.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 140506786553 in words is "one hundred forty billion, five hundred six million, seven hundred eighty-six thousand, five hundred fifty-three".