133964409654 has 64 divisors (see below), whose sum is σ = 301231224000. Its totient is φ = 44125551360.

The previous prime is 133964409599. The next prime is 133964409661. The reversal of 133964409654 is 456904469331.

It is a happy number.

133964409654 is a `hidden beast` number, since 133 + 9 + 6 + 440 + 9 + 65 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 133964409654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8590144 + ... + 8605724.

It is an arithmetic number, because the mean of its divisors is an integer number (4706737875).

Almost surely, 2^133964409654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133964409654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150615612000).

133964409654 is an abundant number, since it is smaller than the sum of its proper divisors (167266814346).

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

133964409654 is a wasteful number, since it uses less digits than its factorization.

133964409654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17470 (or 17464 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 133964409654 in words is "one hundred thirty-three billion, nine hundred sixty-four million, four hundred nine thousand, six hundred fifty-four".