340451040155121 has 24 divisors (see below), whose sum is σ = 586718345847840. Its totient is φ = 194543451516456.

The previous prime is 340451040155113. The next prime is 340451040155123. The reversal of 340451040155121 is 121551040154043.

340451040155121 is a `hidden beast` number, since 3 + 4 + 0 + 4 + 510 + 4 + 0 + 15 + 5 + 121 = 666.

It is not a de Polignac number, because 340451040155121 - 2³ = 340451040155113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340451040155123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128666302591 + ... + 128666305236.

It is an arithmetic number, because the mean of its divisors is an integer number (24446597743660).

Almost surely, 2^{340451040155121} is an apocalyptic number.

It is an amenable number.

340451040155121 is a deficient number, since it is larger than the sum of its proper divisors (246267305692719).

340451040155121 is a wasteful number, since it uses less digits than its factorization.

340451040155121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257332607850 (or 257332607837 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 340451040155121 in words is "three hundred forty trillion, four hundred fifty-one billion, forty million, one hundred fifty-five thousand, one hundred twenty-one".