137664452944 has 40 divisors (see below), whose sum is σ = 273320709480. Its totient is φ = 67131187200.

The previous prime is 137664452941. The next prime is 137664453007. The reversal of 137664452944 is 449254466731.

It can be written as a sum of positive squares in 4 ways, for example, as 25179342400 + 112485110544 = 158680^2 + 335388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137664452941) 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, 2045754 + ... + 2111974.

It is an arithmetic number, because the mean of its divisors is an integer number (6833017737).

Almost surely, 2^137664452944 is an apocalyptic number.

It is an amenable number.

137664452944 is a deficient number, since it is larger than the sum of its proper divisors (135656256536).

137664452944 is a wasteful number, since it uses less digits than its factorization.

137664452944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69439 (or 69433 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 55.

The spelling of 137664452944 in words is "one hundred thirty-seven billion, six hundred sixty-four million, four hundred fifty-two thousand, nine hundred forty-four".