278041023216 has 360 divisors, whose sum is σ = 902418491520. Its totient is φ = 79693891200.

The previous prime is 278041023199. The next prime is 278041023233. The reversal of 278041023216 is 612320140872.

It is a happy number.

278041023216 is a `hidden beast` number, since 2 + 7 + 8 + 0 + 410 + 23 + 216 = 666.

It is an interprime number because it is at equal distance from previous prime (278041023199) and next prime (278041023233).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 440635221 + ... + 440635851.

It is an arithmetic number, because the mean of its divisors is an integer number (2506718032).

Almost surely, 2^278041023216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278041023216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451209245760).

278041023216 is an abundant number, since it is smaller than the sum of its proper divisors (624377468304).

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

278041023216 is an equidigital number, since it uses as much as digits as its factorization.

278041023216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 278041023216 in words is "two hundred seventy-eight billion, forty-one million, twenty-three thousand, two hundred sixteen".