61051512106 has 16 divisors (see below), whose sum is σ = 104422949064. Its totient is φ = 26520113664.

The previous prime is 61051512103. The next prime is 61051512107. The reversal of 61051512106 is 60121515016.

It is a happy number.

61051512106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28522143225 + 32529368881 = 168885^2 + 180359^2 .

It is not an unprimeable number, because it can be changed into a prime (61051512103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69062355 + ... + 69063238.

Almost surely, 2^61051512106 is an apocalyptic number.

61051512106 is a deficient number, since it is larger than the sum of its proper divisors (43371436958).

61051512106 is a wasteful number, since it uses less digits than its factorization.

61051512106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138125625.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 61051512106 in words is "sixty-one billion, fifty-one million, five hundred twelve thousand, one hundred six".