151515506505 has 32 divisors (see below), whose sum is σ = 267031065600. Its totient is φ = 72748831680.

The previous prime is 151515506503. The next prime is 151515506539. The reversal of 151515506505 is 505605515151.

It is not a de Polignac number, because 151515506505 - 2¹ = 151515506503 is a prime.

It is a super-2 number, since 2×151515506505² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (151515506503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4440655 + ... + 4474644.

It is an arithmetic number, because the mean of its divisors is an integer number (8344720800).

Almost surely, 2^151515506505 is an apocalyptic number.

151515506505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

151515506505 is a deficient number, since it is larger than the sum of its proper divisors (115515559095).

151515506505 is a wasteful number, since it uses less digits than its factorization.

151515506505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8915421.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 151515506505 in words is "one hundred fifty-one billion, five hundred fifteen million, five hundred six thousand, five hundred five".