7212445165440 has 256 divisors, whose sum is σ = 27046670472000. Its totient is φ = 1810182242304.

The previous prime is 7212445165439. The next prime is 7212445165507. The reversal of 7212445165440 is 445615442127.

7212445165440 is a `hidden beast` number, since 7 + 2 + 1 + 2 + 4 + 45 + 165 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11982325 + ... + 12569844.

Almost surely, 2^{7212445165440} is an apocalyptic number.

It is an amenable number.

7212445165440 is an abundant number, since it is smaller than the sum of its proper divisors (19834225306560).

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

7212445165440 is a wasteful number, since it uses less digits than its factorization.

7212445165440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24552214 (or 24552196 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 7212445165440 in words is "seven trillion, two hundred twelve billion, four hundred forty-five million, one hundred sixty-five thousand, four hundred forty".