61051551050 has 48 divisors (see below), whose sum is σ = 130555393920. Its totient is φ = 20806599360.

The previous prime is 61051551023. The next prime is 61051551079. The reversal of 61051551050 is 5015515016.

It is a happy number.

It is a super-3 number, since 3×61051551050³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 463805 + ... + 580704.

It is an arithmetic number, because the mean of its divisors is an integer number (2719904040).

Almost surely, 2^61051551050 is an apocalyptic number.

61051551050 is an abundant number, since it is smaller than the sum of its proper divisors (69503842870).

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

61051551050 is a wasteful number, since it uses less digits than its factorization.

61051551050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044695 (or 1044690 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 61051551050 in words is "sixty-one billion, fifty-one million, five hundred fifty-one thousand, fifty".