201655602254 has 4 divisors (see below), whose sum is σ = 302483403384. Its totient is φ = 100827801126.

The previous prime is 201655602241. The next prime is 201655602259. The reversal of 201655602254 is 452206556102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201655602259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50413900562 + ... + 50413900565.

It is an arithmetic number, because the mean of its divisors is an integer number (75620850846).

Almost surely, 2^201655602254 is an apocalyptic number.

201655602254 is a deficient number, since it is larger than the sum of its proper divisors (100827801130).

201655602254 is a wasteful number, since it uses less digits than its factorization.

201655602254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100827801129.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 201655602254 in words is "two hundred one billion, six hundred fifty-five million, six hundred two thousand, two hundred fifty-four".