261025520162 has 64 divisors (see below), whose sum is σ = 444048321024. Its totient is φ = 114040967040.

The previous prime is 261025520159. The next prime is 261025520183.

261025520162 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93994118 + ... + 93996894.

It is an arithmetic number, because the mean of its divisors is an integer number (6938255016).

Almost surely, 2^261025520162 is an apocalyptic number.

261025520162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

261025520162 is a deficient number, since it is larger than the sum of its proper divisors (183022800862).

261025520162 is a wasteful number, since it uses less digits than its factorization.

261025520162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383.

The product of its (nonzero) digits is 14400, while the sum is 32.

It can be divided in two parts, 261025 and 520162, that added together give a palindrome (781187).

The spelling of 261025520162 in words is "two hundred sixty-one billion, twenty-five million, five hundred twenty thousand, one hundred sixty-two".