245156505503 has 16 divisors (see below), whose sum is σ = 303161112576. Its totient is φ = 193050678240.

The previous prime is 245156505493. The next prime is 245156505557. The reversal of 245156505503 is 305505651542.

It is a de Polignac number, because none of the positive numbers 2^k-245156505503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245156505103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6364751 + ... + 6403152.

It is an arithmetic number, because the mean of its divisors is an integer number (18947569536).

Almost surely, 2^245156505503 is an apocalyptic number.

245156505503 is a deficient number, since it is larger than the sum of its proper divisors (58004607073).

245156505503 is a wasteful number, since it uses less digits than its factorization.

245156505503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12768134.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 245156505503 in words is "two hundred forty-five billion, one hundred fifty-six million, five hundred five thousand, five hundred three".