1218653246136 has 32 divisors (see below), whose sum is σ = 3046698522000. Its totient is φ = 406209027840.

The previous prime is 1218653246131. The next prime is 1218653246171. The reversal of 1218653246136 is 6316423568121.

It is a super-3 number, since 3×1218653246136³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218653246131) 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, 649590 + ... + 1690938.

Almost surely, 2^{1218653246136} is an apocalyptic number.

It is an amenable number.

1218653246136 is an abundant number, since it is smaller than the sum of its proper divisors (1828045275864).

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

1218653246136 is a wasteful number, since it uses less digits than its factorization.

1218653246136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090119 (or 1090115 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 1218653246136 in words is "one trillion, two hundred eighteen billion, six hundred fifty-three million, two hundred forty-six thousand, one hundred thirty-six".