258228522420 has 72 divisors (see below), whose sum is σ = 794746317792. Its totient is φ = 62600852160.

The previous prime is 258228522373. The next prime is 258228522437. The reversal of 258228522420 is 24225822852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17777074 + ... + 17791593.

Almost surely, 2^258228522420 is an apocalyptic number.

258228522420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258228522420 is an abundant number, since it is smaller than the sum of its proper divisors (536517795372).

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

258228522420 is a wasteful number, since it uses less digits than its factorization.

258228522420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35568701 (or 35568688 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 42.

The spelling of 258228522420 in words is "two hundred fifty-eight billion, two hundred twenty-eight million, five hundred twenty-two thousand, four hundred twenty".