1345167680 has 28 divisors (see below), whose sum is σ = 3203181300. Its totient is φ = 538066944.

The previous prime is 1345167623. The next prime is 1345167689. The reversal of 1345167680 is 867615431.

1345167680 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 722964544 + 622203136 = 26888^2 + 24944^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345167689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101505 + ... + 2102144.

Almost surely, 2^1345167680 is an apocalyptic number.

1345167680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345167680 is an abundant number, since it is smaller than the sum of its proper divisors (1858013620).

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

1345167680 is an equidigital number, since it uses as much as digits as its factorization.

1345167680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203666 (or 4203656 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 1345167680 is about 36676.5276437124. The cubic root of 1345167680 is about 1103.8891753207.

The spelling of 1345167680 in words is "one billion, three hundred forty-five million, one hundred sixty-seven thousand, six hundred eighty".