20361800252 has 24 divisors (see below), whose sum is σ = 37749000240. Its totient is φ = 9576999680.

The previous prime is 20361800237. The next prime is 20361800267. The reversal of 20361800252 is 25200816302.

It is an interprime number because it is at equal distance from previous prime (20361800237) and next prime (20361800267).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53774 + ... + 208842.

It is an arithmetic number, because the mean of its divisors is an integer number (1572875010).

Almost surely, 2^20361800252 is an apocalyptic number.

It is an amenable number.

20361800252 is a deficient number, since it is larger than the sum of its proper divisors (17387199988).

20361800252 is a wasteful number, since it uses less digits than its factorization.

20361800252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157021 (or 157019 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 20361800252 in words is "twenty billion, three hundred sixty-one million, eight hundred thousand, two hundred fifty-two".