201542215431224 has 64 divisors (see below), whose sum is σ = 410686992384000. Its totient is φ = 92370972274560.

The previous prime is 201542215431211. The next prime is 201542215431247. The reversal of 201542215431224 is 422134512245102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22043882 + ... + 29816390.

It is an arithmetic number, because the mean of its divisors is an integer number (6416984256000).

Almost surely, 2^{201542215431224} is an apocalyptic number.

It is an amenable number.

201542215431224 is an abundant number, since it is smaller than the sum of its proper divisors (209144776952776).

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

201542215431224 is a wasteful number, since it uses less digits than its factorization.

201542215431224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778068 (or 7778064 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 201542215431224 its reverse (422134512245102), we get a palindrome (623676727676326).

The spelling of 201542215431224 in words is "two hundred one trillion, five hundred forty-two billion, two hundred fifteen million, four hundred thirty-one thousand, two hundred twenty-four".