129381650199760 has 320 divisors, whose sum is σ = 368389765545984. Its totient is φ = 41298499123200.

The previous prime is 129381650199661. The next prime is 129381650199803. The reversal of 129381650199760 is 67991056183921.

It is a happy number.

It is a super-2 number, since 2×129381650199760² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108979755 + ... + 110160565.

Almost surely, 2^{129381650199760} is an apocalyptic number.

129381650199760 is a gapful number since it is divisible by the number (10) 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 129381650199760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184194882772992).

129381650199760 is an abundant number, since it is smaller than the sum of its proper divisors (239008115346224).

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

129381650199760 is a wasteful number, since it uses less digits than its factorization.

129381650199760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181082 (or 1181076 counting only the distinct ones).

The product of its (nonzero) digits is 44089920, while the sum is 67.

The spelling of 129381650199760 in words is "one hundred twenty-nine trillion, three hundred eighty-one billion, six hundred fifty million, one hundred ninety-nine thousand, seven hundred sixty".