248134806640 has 80 divisors (see below), whose sum is σ = 660896360640. Its totient is φ = 84872632320.

The previous prime is 248134806553. The next prime is 248134806641. The reversal of 248134806640 is 46608431842.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248134806641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290485 + ... + 762004.

It is an arithmetic number, because the mean of its divisors is an integer number (8261204508).

Almost surely, 2^248134806640 is an apocalyptic number.

248134806640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248134806640 is an abundant number, since it is smaller than the sum of its proper divisors (412761554000).

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

248134806640 is a wasteful number, since it uses less digits than its factorization.

248134806640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052930 (or 1052924 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 248134806640 in words is "two hundred forty-eight billion, one hundred thirty-four million, eight hundred six thousand, six hundred forty".