2231664023560 has 128 divisors (see below), whose sum is σ = 5440281552000. Its totient is φ = 821021681664.

The previous prime is 2231664023539. The next prime is 2231664023573. The reversal of 2231664023560 is 653204661322.

It is a super-3 number, since 3×2231664023560³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 12764011 + ... + 12937669.

It is an arithmetic number, because the mean of its divisors is an integer number (42502199625).

Almost surely, 2^{2231664023560} is an apocalyptic number.

2231664023560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231664023560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2720140776000).

2231664023560 is an abundant number, since it is smaller than the sum of its proper divisors (3208617528440).

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

2231664023560 is a wasteful number, since it uses less digits than its factorization.

2231664023560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174183 (or 174179 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 2231664023560 its reverse (653204661322), we get a palindrome (2884868684882).

The spelling of 2231664023560 in words is "two trillion, two hundred thirty-one billion, six hundred sixty-four million, twenty-three thousand, five hundred sixty".