263252320156 has 48 divisors (see below), whose sum is σ = 527288912640. Its totient is φ = 112654523520.

The previous prime is 263252320153. The next prime is 263252320159. The reversal of 263252320156 is 651023252362.

It is an interprime number because it is at equal distance from previous prime (263252320153) and next prime (263252320159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263252320151) 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, 87428691 + ... + 87431701.

It is an arithmetic number, because the mean of its divisors is an integer number (10985185680).

Almost surely, 2^263252320156 is an apocalyptic number.

It is an amenable number.

263252320156 is an abundant number, since it is smaller than the sum of its proper divisors (264036592484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263252320156 is a wasteful number, since it uses less digits than its factorization.

263252320156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634 (or 6632 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 263252320156 in words is "two hundred sixty-three billion, two hundred fifty-two million, three hundred twenty thousand, one hundred fifty-six".