40002146560 has 72 divisors (see below), whose sum is σ = 95894963136. Its totient is φ = 15987947520.

The previous prime is 40002146543. The next prime is 40002146573. The reversal of 40002146560 is 6564120004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661005 + ... + 1684915.

It is an arithmetic number, because the mean of its divisors is an integer number (1331874488).

Almost surely, 2^40002146560 is an apocalyptic number.

40002146560 is a gapful number since it is divisible by the number (40) 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 40002146560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47947481568).

40002146560 is an abundant number, since it is smaller than the sum of its proper divisors (55892816576).

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

40002146560 is a wasteful number, since it uses less digits than its factorization.

40002146560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25239 (or 25225 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 40002146560 its reverse (6564120004), we get a palindrome (46566266564).

The spelling of 40002146560 in words is "forty billion, two million, one hundred forty-six thousand, five hundred sixty".