340552425201621 has 8 divisors (see below), whose sum is σ = 454342942909440. Its totient is φ = 226898428814112.

The previous prime is 340552425201619. The next prime is 340552425201641. The reversal of 340552425201621 is 126102524255043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340552425201621 - 2¹ = 340552425201619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340552425201641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34130324256 + ... + 34130334233.

It is an arithmetic number, because the mean of its divisors is an integer number (56792867863680).

Almost surely, 2^{340552425201621} is an apocalyptic number.

It is an amenable number.

340552425201621 is a deficient number, since it is larger than the sum of its proper divisors (113790517707819).

340552425201621 is a wasteful number, since it uses less digits than its factorization.

340552425201621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68260660155.

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 340552425201621 its reverse (126102524255043), we get a palindrome (466654949456664).

The spelling of 340552425201621 in words is "three hundred forty trillion, five hundred fifty-two billion, four hundred twenty-five million, two hundred one thousand, six hundred twenty-one".