10521324345155 has 16 divisors (see below), whose sum is σ = 13928417373024. Its totient is φ = 7580091083520.

The previous prime is 10521324345149. The next prime is 10521324345167. The reversal of 10521324345155 is 55154342312501.

It is not a de Polignac number, because 10521324345155 - 2⁸ = 10521324344899 is a prime.

It is a super-2 number, since 2×10521324345155² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973979389 + ... + 1973984718.

It is an arithmetic number, because the mean of its divisors is an integer number (870526085814).

Almost surely, 2^{10521324345155} is an apocalyptic number.

10521324345155 is a deficient number, since it is larger than the sum of its proper divisors (3407093027869).

10521324345155 is a wasteful number, since it uses less digits than its factorization.

10521324345155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3947964166.

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 10521324345155 its reverse (55154342312501), we get a palindrome (65675666657656).

The spelling of 10521324345155 in words is "ten trillion, five hundred twenty-one billion, three hundred twenty-four million, three hundred forty-five thousand, one hundred fifty-five".