263501151420 has 192 divisors, whose sum is σ = 800867571840. Its totient is φ = 64348618752.

The previous prime is 263501151409. The next prime is 263501151479. The reversal of 263501151420 is 24151105362.

263501151420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 59762176 + ... + 59766584.

It is an arithmetic number, because the mean of its divisors is an integer number (4171185270).

Almost surely, 2^263501151420 is an apocalyptic number.

263501151420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263501151420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400433785920).

263501151420 is an abundant number, since it is smaller than the sum of its proper divisors (537366420420).

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

263501151420 is a wasteful number, since it uses less digits than its factorization.

263501151420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024 (or 5022 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 263501151420 its reverse (24151105362), we get a palindrome (287652256782).

The spelling of 263501151420 in words is "two hundred sixty-three billion, five hundred one million, one hundred fifty-one thousand, four hundred twenty".