340445310145511 has 4 divisors (see below), whose sum is σ = 340483835141352. Its totient is φ = 340406785149672.

The previous prime is 340445310145453. The next prime is 340445310145513. The reversal of 340445310145511 is 115541013544043.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340445310145511 is a prime.

It is a super-2 number, since 2×340445310145511² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340445310145513) 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, 19262484665 + ... + 19262502338.

It is an arithmetic number, because the mean of its divisors is an integer number (85120958785338).

Almost surely, 2^{340445310145511} is an apocalyptic number.

340445310145511 is a deficient number, since it is larger than the sum of its proper divisors (38524995841).

340445310145511 is an equidigital number, since it uses as much as digits as its factorization.

340445310145511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38524995840.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 340445310145511 its reverse (115541013544043), we get a palindrome (455986323689554).

The spelling of 340445310145511 in words is "three hundred forty trillion, four hundred forty-five billion, three hundred ten million, one hundred forty-five thousand, five hundred eleven".