137665266398 has 16 divisors (see below), whose sum is σ = 225318242160. Its totient is φ = 62561841600.

The previous prime is 137665266377. The next prime is 137665266407. The reversal of 137665266398 is 893662566731.

It is a happy number.

It is a super-3 number, since 3×137665266398³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137665266398.

It is a congruent number.

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, 557573 + ... + 765648.

It is an arithmetic number, because the mean of its divisors is an integer number (14082390135).

Almost surely, 2^137665266398 is an apocalyptic number.

137665266398 is a deficient number, since it is larger than the sum of its proper divisors (87652975762).

137665266398 is a wasteful number, since it uses less digits than its factorization.

137665266398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327963.

The product of its digits is 58786560, while the sum is 62.

The spelling of 137665266398 in words is "one hundred thirty-seven billion, six hundred sixty-five million, two hundred sixty-six thousand, three hundred ninety-eight".