20532145354 has 64 divisors (see below), whose sum is σ = 36018892800. Its totient is φ = 8597534400.

The previous prime is 20532145331. The next prime is 20532145399. The reversal of 20532145354 is 45354123502.

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, 54174337 + ... + 54174715.

It is an arithmetic number, because the mean of its divisors is an integer number (562795200).

Almost surely, 2^20532145354 is an apocalyptic number.

20532145354 is a deficient number, since it is larger than the sum of its proper divisors (15486747446).

20532145354 is a wasteful number, since it uses less digits than its factorization.

20532145354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 20532145354 its reverse (45354123502), we get a palindrome (65886268856).

The spelling of 20532145354 in words is "twenty billion, five hundred thirty-two million, one hundred forty-five thousand, three hundred fifty-four".