618144165660 has 48 divisors (see below), whose sum is σ = 1978061331456. Its totient is φ = 141290094912.

The previous prime is 618144165649. The next prime is 618144165689. The reversal of 618144165660 is 66561441816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735885492 + ... + 735886331.

It is an arithmetic number, because the mean of its divisors is an integer number (41209611072).

Almost surely, 2^618144165660 is an apocalyptic number.

618144165660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

618144165660 is an abundant number, since it is smaller than the sum of its proper divisors (1359917165796).

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

618144165660 is a wasteful number, since it uses less digits than its factorization.

618144165660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471771842 (or 1471771840 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 618144165660 in words is "six hundred eighteen billion, one hundred forty-four million, one hundred sixty-five thousand, six hundred sixty".