140654403561 has 8 divisors (see below), whose sum is σ = 214330519744. Its totient is φ = 80373944880.

The previous prime is 140654403551. The next prime is 140654403577. The reversal of 140654403561 is 165304456041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140654403561 - 2⁹ = 140654403049 is a prime.

It is a super-2 number, since 2×140654403561² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140654403551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3348914350 + ... + 3348914391.

It is an arithmetic number, because the mean of its divisors is an integer number (26791314968).

Almost surely, 2^140654403561 is an apocalyptic number.

It is an amenable number.

140654403561 is a deficient number, since it is larger than the sum of its proper divisors (73676116183).

140654403561 is an equidigital number, since it uses as much as digits as its factorization.

140654403561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697828751.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 140654403561 in words is "one hundred forty billion, six hundred fifty-four million, four hundred three thousand, five hundred sixty-one".