2155010524021 has 8 divisors (see below), whose sum is σ = 2163149452800. Its totient is φ = 2146884505920.

The previous prime is 2155010523983. The next prime is 2155010524033. The reversal of 2155010524021 is 1204250105512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2155010524021 - 2¹⁷ = 2155010392949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155010521021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2893141 + ... + 3560938.

It is an arithmetic number, because the mean of its divisors is an integer number (270393681600).

Almost surely, 2^{2155010524021} is an apocalyptic number.

It is an amenable number.

2155010524021 is a deficient number, since it is larger than the sum of its proper divisors (8138928779).

2155010524021 is an equidigital number, since it uses as much as digits as its factorization.

2155010524021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455339.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 2155010524021 its reverse (1204250105512), we get a palindrome (3359260629533).

The spelling of 2155010524021 in words is "two trillion, one hundred fifty-five billion, ten million, five hundred twenty-four thousand, twenty-one".