201228647156 has 12 divisors (see below), whose sum is σ = 356392905792. Its totient is φ = 99402102648.

The previous prime is 201228647101. The next prime is 201228647159. The reversal of 201228647156 is 651746822102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201228647159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303054860 + ... + 303055523.

It is an arithmetic number, because the mean of its divisors is an integer number (29699408816).

Almost surely, 2^201228647156 is an apocalyptic number.

It is an amenable number.

201228647156 is a deficient number, since it is larger than the sum of its proper divisors (155164258636).

201228647156 is a wasteful number, since it uses less digits than its factorization.

201228647156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606110470 (or 606110468 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 201228647156 in words is "two hundred one billion, two hundred twenty-eight million, six hundred forty-seven thousand, one hundred fifty-six".