20620150450 has 24 divisors (see below), whose sum is σ = 38357414388. Its totient is φ = 8247214080.

The previous prime is 20620150429. The next prime is 20620150451. The reversal of 20620150450 is 5405102602.

It can be written as a sum of positive squares in 6 ways, for example, as 3941202841 + 16678947609 = 62779^2 + 129147^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20620150451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748114 + ... + 775186.

Almost surely, 2^20620150450 is an apocalyptic number.

20620150450 is a deficient number, since it is larger than the sum of its proper divisors (17737263938).

20620150450 is a wasteful number, since it uses less digits than its factorization.

20620150450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42318 (or 42313 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 20620150450 in words is "twenty billion, six hundred twenty million, one hundred fifty thousand, four hundred fifty".