20985010152 has 32 divisors (see below), whose sum is σ = 52666675200. Its totient is φ = 6967783424.

The previous prime is 20985010139. The next prime is 20985010153. The reversal of 20985010152 is 25101058902.

It is not an unprimeable number, because it can be changed into a prime (20985010153) 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, 1694952 + ... + 1707287.

It is an arithmetic number, because the mean of its divisors is an integer number (1645833600).

Almost surely, 2^20985010152 is an apocalyptic number.

It is an amenable number.

20985010152 is an abundant number, since it is smaller than the sum of its proper divisors (31681665048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20985010152 is a wasteful number, since it uses less digits than its factorization.

20985010152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402505 (or 3402501 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 20985010152 in words is "twenty billion, nine hundred eighty-five million, ten thousand, one hundred fifty-two".