340645516552550 has 24 divisors (see below), whose sum is σ = 691200720860472. Its totient is φ = 123871096928000.

The previous prime is 340645516552547. The next prime is 340645516552609. The reversal of 340645516552550 is 55255615546043.

It is a Curzon number.

It is a congruent number.

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, 309677741771 + ... + 309677742870.

It is an arithmetic number, because the mean of its divisors is an integer number (28800030035853).

Almost surely, 2^{340645516552550} is an apocalyptic number.

340645516552550 is an abundant number, since it is smaller than the sum of its proper divisors (350555204307922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340645516552550 is a wasteful number, since it uses less digits than its factorization.

340645516552550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619355484664 (or 619355484659 counting only the distinct ones).

The product of its (nonzero) digits is 54000000, while the sum is 56.

The spelling of 340645516552550 in words is "three hundred forty trillion, six hundred forty-five billion, five hundred sixteen million, five hundred fifty-two thousand, five hundred fifty".