20144574253601 has 8 divisors (see below), whose sum is σ = 23259714602880. Its totient is φ = 17088769911168.

The previous prime is 20144574253577. The next prime is 20144574253631. The reversal of 20144574253601 is 10635247544102.

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

It is a cyclic number.

It is not a de Polignac number, because 20144574253601 - 2⁶ = 20144574253537 is a prime.

It is a super-2 number, since 2×20144574253601² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20144574253631) 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, 14834000981 + ... + 14834002338.

It is an arithmetic number, because the mean of its divisors is an integer number (2907464325360).

Almost surely, 2^{20144574253601} is an apocalyptic number.

It is an amenable number.

20144574253601 is a deficient number, since it is larger than the sum of its proper divisors (3115140349279).

20144574253601 is an equidigital number, since it uses as much as digits as its factorization.

20144574253601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29668003423.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 20144574253601 in words is "twenty trillion, one hundred forty-four billion, five hundred seventy-four million, two hundred fifty-three thousand, six hundred one".