136156572036 has 81 divisors (see below), whose sum is σ = 348588595173. Its totient is φ = 44810631360.

The previous prime is 136156572029. The next prime is 136156572037. The reversal of 136156572036 is 630275651631.

The square root of 136156572036 is 368994.

It is a perfect power (a square), and thus also a powerful number.

136156572036 is a `hidden beast` number, since 1 + 3 + 61 + 565 + 7 + 20 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26144949636 + 110011622400 = 161694^2 + 331680^2 .

It is a super-2 number, since 2×136156572036² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136156571982 and 136156572000.

It is not an unprimeable number, because it can be changed into a prime (136156572037) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 197042451 + ... + 197043141.

Almost surely, 2^136156572036 is an apocalyptic number.

136156572036 is the 368994-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136156572036

136156572036 is an abundant number, since it is smaller than the sum of its proper divisors (212432023137).

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

136156572036 is an frugal number, since it uses more digits than its factorization.

136156572036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 136156572036 in words is "one hundred thirty-six billion, one hundred fifty-six million, five hundred seventy-two thousand, thirty-six".