61605514160 has 40 divisors (see below), whose sum is σ = 143657906496. Its totient is φ = 24569072640.

The previous prime is 61605514151. The next prime is 61605514171. The reversal of 61605514160 is 6141550616.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 61605514160.

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, 1115576 + ... + 1169495.

Almost surely, 2^61605514160 is an apocalyptic number.

It is an amenable number.

61605514160 is an abundant number, since it is smaller than the sum of its proper divisors (82052392336).

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

61605514160 is a wasteful number, since it uses less digits than its factorization.

61605514160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285421 (or 2285415 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 61605514160 in words is "sixty-one billion, six hundred five million, five hundred fourteen thousand, one hundred sixty".