20354021354510 has 16 divisors (see below), whose sum is σ = 36640206920736. Its totient is φ = 8140948879008.

The previous prime is 20354021354477. The next prime is 20354021354519. The reversal of 20354021354510 is 1545312045302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20354021354519) 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, 82328249 + ... + 82575108.

It is an arithmetic number, because the mean of its divisors is an integer number (2290012932546).

Almost surely, 2^{20354021354510} is an apocalyptic number.

20354021354510 is a deficient number, since it is larger than the sum of its proper divisors (16286185566226).

20354021354510 is a wasteful number, since it uses less digits than its factorization.

20354021354510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164915707.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20354021354510 its reverse (1545312045302), we get a palindrome (21899333399812).

The spelling of 20354021354510 in words is "twenty trillion, three hundred fifty-four billion, twenty-one million, three hundred fifty-four thousand, five hundred ten".