201649840832 has 56 divisors (see below), whose sum is σ = 455505507072. Its totient is φ = 87673836800.

The previous prime is 201649840811. The next prime is 201649840837. The reversal of 201649840832 is 238048946102.

It is not an unprimeable number, because it can be changed into a prime (201649840837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6210644 + ... + 6243027.

It is an arithmetic number, because the mean of its divisors is an integer number (8134026912).

Almost surely, 2^201649840832 is an apocalyptic number.

201649840832 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201649840832 is an abundant number, since it is smaller than the sum of its proper divisors (253855666240).

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

201649840832 is a wasteful number, since it uses less digits than its factorization.

201649840832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12453717 (or 12453707 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 201649840832 in words is "two hundred one billion, six hundred forty-nine million, eight hundred forty thousand, eight hundred thirty-two".