20601550245 has 32 divisors (see below), whose sum is σ = 33428712960. Its totient is φ = 10832998400.

The previous prime is 20601550219. The next prime is 20601550273. The reversal of 20601550245 is 54205510602.

It is not a de Polignac number, because 20601550245 - 2⁷ = 20601550117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333637 + ... + 390533.

It is an arithmetic number, because the mean of its divisors is an integer number (1044647280).

Almost surely, 2^20601550245 is an apocalyptic number.

It is an amenable number.

20601550245 is a deficient number, since it is larger than the sum of its proper divisors (12827162715).

20601550245 is a wasteful number, since it uses less digits than its factorization.

20601550245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57245.

The product of its (nonzero) digits is 12000, while the sum is 30.

It can be divided in two parts, 20601 and 550245, that added together give a triangular number (570846 = T₁₀₆₈).

The spelling of 20601550245 in words is "twenty billion, six hundred one million, five hundred fifty thousand, two hundred forty-five".