20501576245 has 32 divisors (see below), whose sum is σ = 26438711040. Its totient is φ = 15231552000.

The previous prime is 20501576243. The next prime is 20501576261. The reversal of 20501576245 is 54267510502.

It is not a de Polignac number, because 20501576245 - 2¹ = 20501576243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20501576243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397810 + ... + 446380.

It is an arithmetic number, because the mean of its divisors is an integer number (826209720).

Almost surely, 2^20501576245 is an apocalyptic number.

It is an amenable number.

20501576245 is a deficient number, since it is larger than the sum of its proper divisors (5937134795).

20501576245 is a wasteful number, since it uses less digits than its factorization.

20501576245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48717.

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 20501576245 in words is "twenty billion, five hundred one million, five hundred seventy-six thousand, two hundred forty-five".