278160515072 has 224 divisors, whose sum is σ = 620532468864. Its totient is φ = 124657336320.

The previous prime is 278160515053. The next prime is 278160515089. The reversal of 278160515072 is 270515061872.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057644413 + ... + 1057644675.

It is an arithmetic number, because the mean of its divisors is an integer number (2770234236).

Almost surely, 2^278160515072 is an apocalyptic number.

278160515072 is a gapful number since it is divisible by the number (22) 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 278160515072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310266234432).

278160515072 is an abundant number, since it is smaller than the sum of its proper divisors (342371953792).

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

278160515072 is an frugal number, since it uses more digits than its factorization.

278160515072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 278160515072 in words is "two hundred seventy-eight billion, one hundred sixty million, five hundred fifteen thousand, seventy-two".