10145355536521 has 4 divisors (see below), whose sum is σ = 10296778753552. Its totient is φ = 9993932319492.

The previous prime is 10145355536441. The next prime is 10145355536557. The reversal of 10145355536521 is 12563555354101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10145355536521 - 2⁴¹ = 7946332280969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10145355536021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75711608415 + ... + 75711608548.

It is an arithmetic number, because the mean of its divisors is an integer number (2574194688388).

Almost surely, 2^{10145355536521} is an apocalyptic number.

It is an amenable number.

10145355536521 is a deficient number, since it is larger than the sum of its proper divisors (151423217031).

10145355536521 is an equidigital number, since it uses as much as digits as its factorization.

10145355536521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151423217030.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 10145355536521 in words is "ten trillion, one hundred forty-five billion, three hundred fifty-five million, five hundred thirty-six thousand, five hundred twenty-one".