201205502542 has 32 divisors (see below), whose sum is σ = 340516629504. Its totient is φ = 88337433600.

The previous prime is 201205502503. The next prime is 201205502557. The reversal of 201205502542 is 245205502102.

It is a self number, because there is not a number n which added to its sum of digits gives 201205502542.

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, 74638 + ... + 638734.

It is an arithmetic number, because the mean of its divisors is an integer number (10641144672).

Almost surely, 2^201205502542 is an apocalyptic number.

201205502542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201205502542 is a deficient number, since it is larger than the sum of its proper divisors (139311126962).

201205502542 is a wasteful number, since it uses less digits than its factorization.

201205502542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564664.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 201205502542 in words is "two hundred one billion, two hundred five million, five hundred two thousand, five hundred forty-two".