133629726916 has 27 divisors (see below), whose sum is σ = 272042362767. Its totient is φ = 57267689640.

The previous prime is 133629726889. The next prime is 133629726973. The reversal of 133629726916 is 619627926331.

The square root of 133629726916 is 365554.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5104701 + ... + 5130811.

Almost surely, 2^133629726916 is an apocalyptic number.

133629726916 is the 365554-th square number.

It is an amenable number.

133629726916 is an abundant number, since it is smaller than the sum of its proper divisors (138412635851).

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

133629726916 is an frugal number, since it uses more digits than its factorization.

133629726916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52240 (or 26120 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 55.

The spelling of 133629726916 in words is "one hundred thirty-three billion, six hundred twenty-nine million, seven hundred twenty-six thousand, nine hundred sixteen".