261151450106 has 16 divisors (see below), whose sum is σ = 408142644480. Its totient is φ = 125182633440.

The previous prime is 261151450037. The next prime is 261151450111. The reversal of 261151450106 is 601054151162.

It is a super-3 number, since 3×261151450106³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 19676171 + ... + 19689438.

It is an arithmetic number, because the mean of its divisors is an integer number (25508915280).

Almost surely, 2^261151450106 is an apocalyptic number.

261151450106 is a deficient number, since it is larger than the sum of its proper divisors (146991194374).

261151450106 is a wasteful number, since it uses less digits than its factorization.

261151450106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39365749.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 261151450106 in words is "two hundred sixty-one billion, one hundred fifty-one million, four hundred fifty thousand, one hundred six".