6945456196520 has 16 divisors (see below), whose sum is σ = 15627276442260. Its totient is φ = 2778182478592.

The previous prime is 6945456196513. The next prime is 6945456196571. The reversal of 6945456196520 is 256916545496.

It can be written as a sum of positive squares in 2 ways, for example, as 6865626214756 + 79829981764 = 2620234^2 + 282542^2 .

It is a super-2 number, since 2×6945456196520² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86818202417 + ... + 86818202496.

Almost surely, 2^{6945456196520} is an apocalyptic number.

It is an amenable number.

6945456196520 is an abundant number, since it is smaller than the sum of its proper divisors (8681820245740).

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

6945456196520 is a wasteful number, since it uses less digits than its factorization.

6945456196520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173636404924 (or 173636404920 counting only the distinct ones).

The product of its (nonzero) digits is 69984000, while the sum is 62.

The spelling of 6945456196520 in words is "six trillion, nine hundred forty-five billion, four hundred fifty-six million, one hundred ninety-six thousand, five hundred twenty".