7266018816 has 400 divisors, whose sum is σ = 25128939264. Its totient is φ = 2055849984.

The previous prime is 7266018797. The next prime is 7266018821. The reversal of 7266018816 is 6188106627.

It is a happy number.

7266018816 is a `hidden beast` number, since 7 + 26 + 601 + 8 + 8 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70543821 + ... + 70543923.

Almost surely, 2^7266018816 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 7266018816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12564469632).

7266018816 is an abundant number, since it is smaller than the sum of its proper divisors (17862920448).

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

7266018816 is an frugal number, since it uses more digits than its factorization.

7266018816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 7266018816 is about 85240.9456540693. The cubic root of 7266018816 is about 1936.8627168370.

The spelling of 7266018816 in words is "seven billion, two hundred sixty-six million, eighteen thousand, eight hundred sixteen".