20303617493572 has 48 divisors (see below), whose sum is σ = 40777322382720. Its totient is φ = 8665105881600.

The previous prime is 20303617493567. The next prime is 20303617493581. The reversal of 20303617493572 is 27539471630302.

It is a super-2 number, since 2×20303617493572² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254298954 + ... + 254378782.

It is an arithmetic number, because the mean of its divisors is an integer number (849527549640).

Almost surely, 2^{20303617493572} is an apocalyptic number.

It is an amenable number.

20303617493572 is an abundant number, since it is smaller than the sum of its proper divisors (20473704889148).

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

20303617493572 is a wasteful number, since it uses less digits than its factorization.

20303617493572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117772 (or 117770 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 52.

The spelling of 20303617493572 in words is "twenty trillion, three hundred three billion, six hundred seventeen million, four hundred ninety-three thousand, five hundred seventy-two".