151223260520 has 16 divisors (see below), whose sum is σ = 340252336260. Its totient is φ = 60489304192.

The previous prime is 151223260501. The next prime is 151223260537. The reversal of 151223260520 is 25062322151.

It can be written as a sum of positive squares in 2 ways, for example, as 151210544164 + 12716356 = 388858^2 + 3566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1890290717 + ... + 1890290796.

Almost surely, 2^151223260520 is an apocalyptic number.

151223260520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151223260520 is an abundant number, since it is smaller than the sum of its proper divisors (189029075740).

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

151223260520 is a wasteful number, since it uses less digits than its factorization.

151223260520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780581524 (or 3780581520 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 151223260520 its reverse (25062322151), we get a palindrome (176285582671).

The spelling of 151223260520 in words is "one hundred fifty-one billion, two hundred twenty-three million, two hundred sixty thousand, five hundred twenty".