1138208599506 has 16 divisors (see below), whose sum is σ = 2483364217248. Its totient is φ = 344911696800.

The previous prime is 1138208599501. The next prime is 1138208599537. The reversal of 1138208599506 is 6059958028311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1138208599501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8622792355 + ... + 8622792486.

It is an arithmetic number, because the mean of its divisors is an integer number (155210263578).

Almost surely, 2^{1138208599506} is an apocalyptic number.

1138208599506 is an abundant number, since it is smaller than the sum of its proper divisors (1345155617742).

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

1138208599506 is a wasteful number, since it uses less digits than its factorization.

1138208599506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17245584857.

The product of its (nonzero) digits is 4665600, while the sum is 57.

The spelling of 1138208599506 in words is "one trillion, one hundred thirty-eight billion, two hundred eight million, five hundred ninety-nine thousand, five hundred six".