139660145845 has 16 divisors (see below), whose sum is σ = 188725501440. Its totient is φ = 98294529600.

The previous prime is 139660145827. The next prime is 139660145857. The reversal of 139660145845 is 548541066931.

It is a happy number.

It is not a de Polignac number, because 139660145845 - 2¹³ = 139660137653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139660145792 and 139660145801.

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, 40954350 + ... + 40957759.

It is an arithmetic number, because the mean of its divisors is an integer number (11795343840).

Almost surely, 2^139660145845 is an apocalyptic number.

It is an amenable number.

139660145845 is a deficient number, since it is larger than the sum of its proper divisors (49065355595).

139660145845 is a wasteful number, since it uses less digits than its factorization.

139660145845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81912156.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 139660145845 in words is "one hundred thirty-nine billion, six hundred sixty million, one hundred forty-five thousand, eight hundred forty-five".