21150035153634 has 16 divisors (see below), whose sum is σ = 42736153507488. Its totient is φ = 6977331184512.

The previous prime is 21150035153633. The next prime is 21150035153719. The reversal of 21150035153634 is 43635153005112.

It is a super-3 number, since 3×21150035153634³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21150035153592 and 21150035153601.

It is not an unprimeable number, because it can be changed into a prime (21150035153633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18170132712 + ... + 18170133875.

It is an arithmetic number, because the mean of its divisors is an integer number (2671009594218).

Almost surely, 2^{21150035153634} is an apocalyptic number.

21150035153634 is an abundant number, since it is smaller than the sum of its proper divisors (21586118353854).

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

21150035153634 is a wasteful number, since it uses less digits than its factorization.

21150035153634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36340266689.

The product of its (nonzero) digits is 162000, while the sum is 39.

Adding to 21150035153634 its reverse (43635153005112), we get a palindrome (64785188158746).

The spelling of 21150035153634 in words is "twenty-one trillion, one hundred fifty billion, thirty-five million, one hundred fifty-three thousand, six hundred thirty-four".