134949601644 has 144 divisors (see below), whose sum is σ = 373877683200. Its totient is φ = 37632355200.

The previous prime is 134949601607. The next prime is 134949601669. The reversal of 134949601644 is 446106949431.

It is a super-2 number, since 2×134949601644² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6237157 + ... + 6258755.

It is an arithmetic number, because the mean of its divisors is an integer number (2596372800).

Almost surely, 2^134949601644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134949601644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186938841600).

134949601644 is an abundant number, since it is smaller than the sum of its proper divisors (238928081556).

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

134949601644 is a wasteful number, since it uses less digits than its factorization.

134949601644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21972 (or 21959 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 134949601644 in words is "one hundred thirty-four billion, nine hundred forty-nine million, six hundred one thousand, six hundred forty-four".