201153439144 has 16 divisors (see below), whose sum is σ = 431043084000. Its totient is φ = 86208616752.

The previous prime is 201153439141. The next prime is 201153439213. The reversal of 201153439144 is 441934351102.

It is a super-2 number, since 2×201153439144² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201153439141) 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, 1796012794 + ... + 1796012905.

It is an arithmetic number, because the mean of its divisors is an integer number (26940192750).

Almost surely, 2^201153439144 is an apocalyptic number.

It is an amenable number.

201153439144 is an abundant number, since it is smaller than the sum of its proper divisors (229889644856).

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

201153439144 is a wasteful number, since it uses less digits than its factorization.

201153439144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3592025712 (or 3592025708 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 201153439144 in words is "two hundred one billion, one hundred fifty-three million, four hundred thirty-nine thousand, one hundred forty-four".