133738550901 has 96 divisors (see below), whose sum is σ = 212681064960. Its totient is φ = 83842988544.

The previous prime is 133738550879. The next prime is 133738550903. The reversal of 133738550901 is 109055837331.

133738550901 is a `hidden beast` number, since 1 + 3 + 3 + 7 + 3 + 8 + 550 + 90 + 1 = 666.

It is not a de Polignac number, because 133738550901 - 2⁶ = 133738550837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133738550903) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77170831 + ... + 77172563.

It is an arithmetic number, because the mean of its divisors is an integer number (2215427760).

Almost surely, 2^133738550901 is an apocalyptic number.

It is an amenable number.

133738550901 is a deficient number, since it is larger than the sum of its proper divisors (78942514059).

133738550901 is a wasteful number, since it uses less digits than its factorization.

133738550901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 133738550901 in words is "one hundred thirty-three billion, seven hundred thirty-eight million, five hundred fifty thousand, nine hundred one".