1345661011718 has 4 divisors (see below), whose sum is σ = 2018491517580. Its totient is φ = 672830505858.

The previous prime is 1345661011711. The next prime is 1345661011733. The reversal of 1345661011718 is 8171101665431.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1345661011718² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345661011711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336415252928 + ... + 336415252931.

It is an arithmetic number, because the mean of its divisors is an integer number (504622879395).

Almost surely, 2^{1345661011718} is an apocalyptic number.

1345661011718 is a deficient number, since it is larger than the sum of its proper divisors (672830505862).

1345661011718 is an equidigital number, since it uses as much as digits as its factorization.

1345661011718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672830505861.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 1345661011718 in words is "one trillion, three hundred forty-five billion, six hundred sixty-one million, eleven thousand, seven hundred eighteen".