2118851953560 has 128 divisors (see below), whose sum is σ = 7063728768000. Its totient is φ = 564956074368.

The previous prime is 2118851953507. The next prime is 2118851953579. The reversal of 2118851953560 is 653591588112.

2118851953560 is a `hidden beast` number, since 2 + 1 + 18 + 8 + 5 + 19 + 53 + 560 = 666.

It is a super-2 number, since 2×2118851953560² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 2118851953497 and 2118851953506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8757169 + ... + 8995871.

It is an arithmetic number, because the mean of its divisors is an integer number (55185381000).

Almost surely, 2^{2118851953560} is an apocalyptic number.

2118851953560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118851953560 is an abundant number, since it is smaller than the sum of its proper divisors (4944876814440).

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

2118851953560 is a wasteful number, since it uses less digits than its factorization.

2118851953560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246942 (or 246932 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 54.

The spelling of 2118851953560 in words is "two trillion, one hundred eighteen billion, eight hundred fifty-one million, nine hundred fifty-three thousand, five hundred sixty".