139724164256 has 12 divisors (see below), whose sum is σ = 275081948442. Its totient is φ = 69862082112.

The previous prime is 139724164243. The next prime is 139724164259. The reversal of 139724164256 is 652461427931.

It can be written as a sum of positive squares in only one way, i.e., 136323408400 + 3400755856 = 369220^2 + 58316^2 .

It is not an unprimeable number, because it can be changed into a prime (139724164259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2183190035 + ... + 2183190098.

Almost surely, 2^139724164256 is an apocalyptic number.

139724164256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139724164256 is a deficient number, since it is larger than the sum of its proper divisors (135357784186).

139724164256 is an equidigital number, since it uses as much as digits as its factorization.

139724164256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366380143 (or 4366380135 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The spelling of 139724164256 in words is "one hundred thirty-nine billion, seven hundred twenty-four million, one hundred sixty-four thousand, two hundred fifty-six".