154340057705 has 12 divisors (see below), whose sum is σ = 189232522500. Its totient is φ = 120844972704.

The previous prime is 154340057671. The next prime is 154340057723. The reversal of 154340057705 is 507750043451.

It can be written as a sum of positive squares in 2 ways, for example, as 93129339241 + 61210718464 = 305171^2 + 247408^2 .

It is a de Polignac number, because none of the positive numbers 2^k-154340057705 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6975830 + ... + 6997919.

It is an arithmetic number, because the mean of its divisors is an integer number (15769376875).

Almost surely, 2^154340057705 is an apocalyptic number.

It is an amenable number.

154340057705 is a deficient number, since it is larger than the sum of its proper divisors (34892464795).

154340057705 is an equidigital number, since it uses as much as digits as its factorization.

154340057705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973848 (or 13973801 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 41.

The spelling of 154340057705 in words is "one hundred fifty-four billion, three hundred forty million, fifty-seven thousand, seven hundred five".