355552143646 has 16 divisors (see below), whose sum is σ = 609583436640. Its totient is φ = 152363121120.

The previous prime is 355552143613. The next prime is 355552143673. The reversal of 355552143646 is 646341255553.

It is a self number, because there is not a number n which added to its sum of digits gives 355552143646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228641 + ... + 1490188.

It is an arithmetic number, because the mean of its divisors is an integer number (38098964790).

Almost surely, 2^355552143646 is an apocalyptic number.

355552143646 is a deficient number, since it is larger than the sum of its proper divisors (254031292994).

355552143646 is a wasteful number, since it uses less digits than its factorization.

355552143646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728179.

The product of its digits is 6480000, while the sum is 49.

The spelling of 355552143646 in words is "three hundred fifty-five billion, five hundred fifty-two million, one hundred forty-three thousand, six hundred forty-six".