140653624561 has 4 divisors (see below), whose sum is σ = 141036877312. Its totient is φ = 140270371812.

The previous prime is 140653624541. The next prime is 140653624583. The reversal of 140653624561 is 165426356041.

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 140653624561 - 2²³ = 140645235953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140653624511) 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, 191625825 + ... + 191626558.

It is an arithmetic number, because the mean of its divisors is an integer number (35259219328).

Almost surely, 2^140653624561 is an apocalyptic number.

It is an amenable number.

140653624561 is a deficient number, since it is larger than the sum of its proper divisors (383252751).

140653624561 is an equidigital number, since it uses as much as digits as its factorization.

140653624561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383252750.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 140653624561 in words is "one hundred forty billion, six hundred fifty-three million, six hundred twenty-four thousand, five hundred sixty-one".