218712155060 has 48 divisors (see below), whose sum is σ = 524958801024. Its totient is φ = 74979934848.

The previous prime is 218712155027. The next prime is 218712155069. The reversal of 218712155060 is 60551217812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218712155069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537262 + ... + 1673498.

It is an arithmetic number, because the mean of its divisors is an integer number (10936641688).

Almost surely, 2^218712155060 is an apocalyptic number.

218712155060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218712155060 is an abundant number, since it is smaller than the sum of its proper divisors (306246645964).

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

218712155060 is a wasteful number, since it uses less digits than its factorization.

218712155060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147720 (or 147718 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 218712155060 in words is "two hundred eighteen billion, seven hundred twelve million, one hundred fifty-five thousand, sixty".