2136534036440 has 32 divisors (see below), whose sum is σ = 4813981902000. Its totient is φ = 853408224384.

The previous prime is 2136534036437. The next prime is 2136534036449. The reversal of 2136534036440 is 446304356312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136534036449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37639730 + ... + 37696449.

Almost surely, 2^{2136534036440} is an apocalyptic number.

2136534036440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136534036440 is an abundant number, since it is smaller than the sum of its proper divisors (2677447865560).

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

2136534036440 is a wasteful number, since it uses less digits than its factorization.

2136534036440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75336899 (or 75336895 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 2136534036440 in words is "two trillion, one hundred thirty-six billion, five hundred thirty-four million, thirty-six thousand, four hundred forty".