201154510040050 has 72 divisors (see below), whose sum is σ = 460834598870964. Its totient is φ = 64910362890240.

The previous prime is 201154510040047. The next prime is 201154510040051. The reversal of 201154510040050 is 50040015451102.

It can be written as a sum of positive squares in 6 ways, for example, as 47727220263121 + 153427289776929 = 6908489^2 + 12386577^2 .

It is not an unprimeable number, because it can be changed into a prime (201154510040051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2414778399 + ... + 2414861698.

Almost surely, 2^{201154510040050} is an apocalyptic number.

201154510040050 is an abundant number, since it is smaller than the sum of its proper divisors (259680088830914).

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

201154510040050 is a wasteful number, since it uses less digits than its factorization.

201154510040050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829640140 (or 4829640128 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 201154510040050 its reverse (50040015451102), we get a palindrome (251194525491152).

It can be divided in two parts, 2011545 and 10040050, that added together give a triangular number (12051595 = T₄₉₀₉).

The spelling of 201154510040050 in words is "two hundred one trillion, one hundred fifty-four billion, five hundred ten million, forty thousand, fifty".