245340380020961 has 32 divisors (see below), whose sum is σ = 251774977138560. Its totient is φ = 238994284032000.

The previous prime is 245340380020919. The next prime is 245340380021089. The reversal of 245340380020961 is 169020083043542.

It is a cyclic number.

It is not a de Polignac number, because 245340380020961 - 2¹⁰ = 245340380019937 is a prime.

It is a super-3 number, since 3×245340380020961³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245340380020061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2454311021 + ... + 2454410981.

It is an arithmetic number, because the mean of its divisors is an integer number (7867968035580).

Almost surely, 2^{245340380020961} is an apocalyptic number.

It is an amenable number.

245340380020961 is a deficient number, since it is larger than the sum of its proper divisors (6434597117599).

245340380020961 is a wasteful number, since it uses less digits than its factorization.

245340380020961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101105.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 245340380020961 in words is "two hundred forty-five trillion, three hundred forty billion, three hundred eighty million, twenty thousand, nine hundred sixty-one".