139664713968 has 200 divisors, whose sum is σ = 438004149968. Its totient is φ = 42709275648.

The previous prime is 139664713957. The next prime is 139664714029. The reversal of 139664713968 is 869317466931.

139664713968 is a `hidden beast` number, since 13 + 9 + 66 + 471 + 3 + 96 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2720796 + ... + 2771652.

Almost surely, 2^139664713968 is an apocalyptic number.

139664713968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139664713968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219002074984).

139664713968 is an abundant number, since it is smaller than the sum of its proper divisors (298339436000).

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

139664713968 is a wasteful number, since it uses less digits than its factorization.

139664713968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51053 (or 51038 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The spelling of 139664713968 in words is "one hundred thirty-nine billion, six hundred sixty-four million, seven hundred thirteen thousand, nine hundred sixty-eight".