61000500556 has 24 divisors (see below), whose sum is σ = 110067338304. Its totient is φ = 29563519440.

The previous prime is 61000500503. The next prime is 61000500629. The reversal of 61000500556 is 65500500016.

It is a super-2 number, since 2×61000500556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331110 + ... + 1376173.

It is an arithmetic number, because the mean of its divisors is an integer number (4586139096).

Almost surely, 2^61000500556 is an apocalyptic number.

It is an amenable number.

61000500556 is a deficient number, since it is larger than the sum of its proper divisors (49066837748).

61000500556 is a wasteful number, since it uses less digits than its factorization.

61000500556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707461 (or 2707459 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 61000500556 in words is "sixty-one billion, five hundred thousand, five hundred fifty-six".