61010605100 has 36 divisors (see below), whose sum is σ = 132630823584. Its totient is φ = 24360406080.

The previous prime is 61010605079. The next prime is 61010605141. The reversal of 61010605100 is 150601016.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 491972 + ... + 603371.

It is an arithmetic number, because the mean of its divisors is an integer number (3684189544).

Almost surely, 2^61010605100 is an apocalyptic number.

It is an amenable number.

61010605100 is an abundant number, since it is smaller than the sum of its proper divisors (71620218484).

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

61010605100 is a wasteful number, since it uses less digits than its factorization.

61010605100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095914 (or 1095907 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The spelling of 61010605100 in words is "sixty-one billion, ten million, six hundred five thousand, one hundred".