238266168520 has 32 divisors (see below), whose sum is σ = 536183968320. Its totient is φ = 95291340480.

The previous prime is 238266168499. The next prime is 238266168551. The reversal of 238266168520 is 25861662832.

It is a super-2 number, since 2×238266168520² (a number of 24 digits) contains 22 as substring.

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, 215826 + ... + 723265.

It is an arithmetic number, because the mean of its divisors is an integer number (16755749010).

Almost surely, 2^238266168520 is an apocalyptic number.

238266168520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238266168520 is an abundant number, since it is smaller than the sum of its proper divisors (297917799800).

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

238266168520 is a wasteful number, since it uses less digits than its factorization.

238266168520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945445 (or 945441 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 238266168520 in words is "two hundred thirty-eight billion, two hundred sixty-six million, one hundred sixty-eight thousand, five hundred twenty".