4004012203660 has 96 divisors (see below), whose sum is σ = 9715762022400. Its totient is φ = 1357725017088.

The previous prime is 4004012203589. The next prime is 4004012203687. The reversal of 4004012203660 is 663022104004.

It is a super-2 number, since 2×4004012203660² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 4222324 + ... + 5082916.

It is an arithmetic number, because the mean of its divisors is an integer number (101205854400).

Almost surely, 2^{4004012203660} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4004012203660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4857881011200).

4004012203660 is an abundant number, since it is smaller than the sum of its proper divisors (5711749818740).

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

4004012203660 is a wasteful number, since it uses less digits than its factorization.

4004012203660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860975 (or 860973 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4004012203660 its reverse (663022104004), we get a palindrome (4667034307664).

The spelling of 4004012203660 in words is "four trillion, four billion, twelve million, two hundred three thousand, six hundred sixty".