20350162045521 has 144 divisors (see below), whose sum is σ = 37666612349184. Its totient is φ = 10360605024000.

The previous prime is 20350162045513. The next prime is 20350162045531. The reversal of 20350162045521 is 12554026105302.

20350162045521 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 0 + 1 + 620 + 4 + 5 + 5 + 21 = 666.

It is not a de Polignac number, because 20350162045521 - 2³ = 20350162045513 is a prime.

It is a super-2 number, since 2×20350162045521² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20350162045531) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 128726836 + ... + 128884826.

Almost surely, 2^{20350162045521} is an apocalyptic number.

20350162045521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20350162045521 is a deficient number, since it is larger than the sum of its proper divisors (17316450303663).

20350162045521 is a wasteful number, since it uses less digits than its factorization.

20350162045521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158364 (or 158350 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 20350162045521 in words is "twenty trillion, three hundred fifty billion, one hundred sixty-two million, forty-five thousand, five hundred twenty-one".