136520656122 has 8 divisors (see below), whose sum is σ = 273041312256. Its totient is φ = 45506885372.

The previous prime is 136520656121. The next prime is 136520656159. The reversal of 136520656122 is 221656025631.

It is a sphenic number, since it is the product of 3 distinct primes.

136520656122 is an admirable number.

It is a super-3 number, since 3×136520656122³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (136520656121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11376721338 + ... + 11376721349.

It is an arithmetic number, because the mean of its divisors is an integer number (34130164032).

Almost surely, 2^136520656122 is an apocalyptic number.

136520656122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

136520656122 is a wasteful number, since it uses less digits than its factorization.

136520656122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22753442692.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 136520656122 in words is "one hundred thirty-six billion, five hundred twenty million, six hundred fifty-six thousand, one hundred twenty-two".