61205645006 has 8 divisors (see below), whose sum is σ = 100154691864. Its totient is φ = 27820747720.

The previous prime is 61205644991. The next prime is 61205645029. The reversal of 61205645006 is 60054650216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61205645006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391037365 + ... + 1391037408.

It is an arithmetic number, because the mean of its divisors is an integer number (12519336483).

Almost surely, 2^61205645006 is an apocalyptic number.

61205645006 is a deficient number, since it is larger than the sum of its proper divisors (38949046858).

61205645006 is a wasteful number, since it uses less digits than its factorization.

61205645006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782074786.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 61205645006 in words is "sixty-one billion, two hundred five million, six hundred forty-five thousand, six".