736558116426 has 128 divisors (see below), whose sum is σ = 1880039577600. Its totient is φ = 211399735680.

The previous prime is 736558116379. The next prime is 736558116439. The reversal of 736558116426 is 624611855637.

It is a happy number.

736558116426 is a `hidden beast` number, since 7 + 3 + 6 + 5 + 581 + 16 + 42 + 6 = 666.

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

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, 89460006 + ... + 89468238.

It is an arithmetic number, because the mean of its divisors is an integer number (14687809200).

Almost surely, 2^736558116426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 736558116426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940019788800).

736558116426 is an abundant number, since it is smaller than the sum of its proper divisors (1143481461174).

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

736558116426 is a wasteful number, since it uses less digits than its factorization.

736558116426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16201 (or 16195 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 736558116426 in words is "seven hundred thirty-six billion, five hundred fifty-eight million, one hundred sixteen thousand, four hundred twenty-six".