355641263661 has 16 divisors (see below), whose sum is σ = 502233571584. Its totient is φ = 223079998464.

The previous prime is 355641263657. The next prime is 355641263687. The reversal of 355641263661 is 166362146553.

It is not a de Polignac number, because 355641263661 - 2² = 355641263657 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 355641263661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355641263611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883461 + ... + 1221386.

It is an arithmetic number, because the mean of its divisors is an integer number (31389598224).

Almost surely, 2^355641263661 is an apocalyptic number.

It is an amenable number.

355641263661 is a deficient number, since it is larger than the sum of its proper divisors (146592307923).

355641263661 is a wasteful number, since it uses less digits than its factorization.

355641263661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108180.

The product of its digits is 2332800, while the sum is 48.

The spelling of 355641263661 in words is "three hundred fifty-five billion, six hundred forty-one million, two hundred sixty-three thousand, six hundred sixty-one".