20352451015 has 8 divisors (see below), whose sum is σ = 26301629088. Its totient is φ = 15029502240.

The previous prime is 20352451013. The next prime is 20352451037. The reversal of 20352451015 is 51015425302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20352451015 - 2¹ = 20352451013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352451013) 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, 156557251 + ... + 156557380.

It is an arithmetic number, because the mean of its divisors is an integer number (3287703636).

Almost surely, 2^20352451015 is an apocalyptic number.

20352451015 is a deficient number, since it is larger than the sum of its proper divisors (5949178073).

20352451015 is a wasteful number, since it uses less digits than its factorization.

20352451015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313114649.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 20352451015 its reverse (51015425302), we get a palindrome (71367876317).

The spelling of 20352451015 in words is "twenty billion, three hundred fifty-two million, four hundred fifty-one thousand, fifteen".