208207542140012 has 24 divisors (see below), whose sum is σ = 365196277110672. Its totient is φ = 103865854366400.

The previous prime is 208207542139969. The next prime is 208207542140023. The reversal of 208207542140012 is 210041245702802.

It is a happy number.

It is a super-2 number, since 2×208207542140012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5327039 + ... + 21090102.

It is an arithmetic number, because the mean of its divisors is an integer number (15216511546278).

Almost surely, 2^{208207542140012} is an apocalyptic number.

It is an amenable number.

208207542140012 is a deficient number, since it is larger than the sum of its proper divisors (156988734970660).

208207542140012 is a wasteful number, since it uses less digits than its factorization.

208207542140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26421649 (or 26421647 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

Adding to 208207542140012 its reverse (210041245702802), we get a palindrome (418248787842814).

The spelling of 208207542140012 in words is "two hundred eight trillion, two hundred seven billion, five hundred forty-two million, one hundred forty thousand, twelve".