139753121664 has 128 divisors (see below), whose sum is σ = 420815606400. Its totient is φ = 40737724416.

The previous prime is 139753121653. The next prime is 139753121681. The reversal of 139753121664 is 466121357931.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×139753121664² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641874 + ... + 831569.

It is an arithmetic number, because the mean of its divisors is an integer number (3287621925).

Almost surely, 2^139753121664 is an apocalyptic number.

It is an amenable number.

139753121664 is an abundant number, since it is smaller than the sum of its proper divisors (281062484736).

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

139753121664 is a wasteful number, since it uses less digits than its factorization.

139753121664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473492 (or 1473480 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The spelling of 139753121664 in words is "one hundred thirty-nine billion, seven hundred fifty-three million, one hundred twenty-one thousand, six hundred sixty-four".