138786265366 has 16 divisors (see below), whose sum is σ = 237924416160. Its totient is φ = 59478552000.

The previous prime is 138786265363. The next prime is 138786265379. The reversal of 138786265366 is 663562687831.

It is a super-2 number, since 2×138786265366² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138786265363) 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, 894180 + ... + 1037848.

It is an arithmetic number, because the mean of its divisors is an integer number (14870276010).

Almost surely, 2^138786265366 is an apocalyptic number.

138786265366 is a deficient number, since it is larger than the sum of its proper divisors (99138150794).

138786265366 is a wasteful number, since it uses less digits than its factorization.

138786265366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212679.

The product of its digits is 52254720, while the sum is 61.

The spelling of 138786265366 in words is "one hundred thirty-eight billion, seven hundred eighty-six million, two hundred sixty-five thousand, three hundred sixty-six".