61609065006 has 16 divisors (see below), whose sum is σ = 123242131584. Its totient is φ = 20532354744.

The previous prime is 61609064987. The next prime is 61609065031. The reversal of 61609065006 is 60056090616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966610 + ... + 1028373.

It is an arithmetic number, because the mean of its divisors is an integer number (7702633224).

Almost surely, 2^61609065006 is an apocalyptic number.

61609065006 is an abundant number, since it is smaller than the sum of its proper divisors (61633066578).

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

61609065006 is a wasteful number, since it uses less digits than its factorization.

61609065006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000135.

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 61609065006 in words is "sixty-one billion, six hundred nine million, sixty-five thousand, six".