245664671559 has 32 divisors (see below), whose sum is σ = 339652051200. Its totient is φ = 157754204160.

The previous prime is 245664671531. The next prime is 245664671569. The reversal of 245664671559 is 955176466542.

245664671559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245664671559 - 2¹⁶ = 245664606023 is a prime.

It is a super-2 number, since 2×245664671559² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245664671569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101892064 + ... + 101894474.

It is an arithmetic number, because the mean of its divisors is an integer number (10614126600).

Almost surely, 2^245664671559 is an apocalyptic number.

245664671559 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

245664671559 is a deficient number, since it is larger than the sum of its proper divisors (93987379641).

245664671559 is a wasteful number, since it uses less digits than its factorization.

245664671559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735.

The product of its digits is 54432000, while the sum is 60.

The spelling of 245664671559 in words is "two hundred forty-five billion, six hundred sixty-four million, six hundred seventy-one thousand, five hundred fifty-nine".