52156344636 has 96 divisors (see below), whose sum is σ = 148818700800. Its totient is φ = 15665045760.

The previous prime is 52156344601. The next prime is 52156344637. The reversal of 52156344636 is 63644365125.

52156344636 is a `hidden beast` number, since 5 + 2 + 1 + 5 + 6 + 3 + 4 + 4 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 52156344591 and 52156344600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52156344637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60016 + ... + 328503.

It is an arithmetic number, because the mean of its divisors is an integer number (1550194800).

Almost surely, 2^52156344636 is an apocalyptic number.

It is an amenable number.

52156344636 is an abundant number, since it is smaller than the sum of its proper divisors (96662356164).

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

52156344636 is a wasteful number, since it uses less digits than its factorization.

52156344636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388656 (or 388648 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 52156344636 in words is "fifty-two billion, one hundred fifty-six million, three hundred forty-four thousand, six hundred thirty-six".