2151520041140 has 96 divisors (see below), whose sum is σ = 4856803701120. Its totient is φ = 797659213824.

The previous prime is 2151520041127. The next prime is 2151520041161. The reversal of 2151520041140 is 411400251512.

It is a happy number.

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, 89900696 + ... + 89924624.

It is an arithmetic number, because the mean of its divisors is an integer number (50591705220).

Almost surely, 2^{2151520041140} is an apocalyptic number.

2151520041140 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 2151520041140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2428401850560).

2151520041140 is an abundant number, since it is smaller than the sum of its proper divisors (2705283659980).

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

2151520041140 is a wasteful number, since it uses less digits than its factorization.

2151520041140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27969 (or 27967 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 2151520041140 its reverse (411400251512), we get a palindrome (2562920292652).

The spelling of 2151520041140 in words is "two trillion, one hundred fifty-one billion, five hundred twenty million, forty-one thousand, one hundred forty".