20345006254309 has 8 divisors (see below), whose sum is σ = 22198864472928. Its totient is φ = 18491866734960.

The previous prime is 20345006254289. The next prime is 20345006254327. The reversal of 20345006254309 is 90345260054302.

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 20345006254309 - 2¹⁵ = 20345006221541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345006254399) 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, 179615622 + ... + 179728855.

It is an arithmetic number, because the mean of its divisors is an integer number (2774858059116).

Almost surely, 2^{20345006254309} is an apocalyptic number.

It is an amenable number.

20345006254309 is a deficient number, since it is larger than the sum of its proper divisors (1853858218619).

20345006254309 is a wasteful number, since it uses less digits than its factorization.

20345006254309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359349635.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 20345006254309 in words is "twenty trillion, three hundred forty-five billion, six million, two hundred fifty-four thousand, three hundred nine".