61405604610 has 32 divisors (see below), whose sum is σ = 168426801792. Its totient is φ = 14035566720.

The previous prime is 61405604609. The next prime is 61405604621. The reversal of 61405604610 is 1640650416.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146203611 + ... + 146204030.

It is an arithmetic number, because the mean of its divisors is an integer number (5263337556).

Almost surely, 2^61405604610 is an apocalyptic number.

61405604610 is an abundant number, since it is smaller than the sum of its proper divisors (107021197182).

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

61405604610 is a wasteful number, since it uses less digits than its factorization.

61405604610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292407658.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 61405604610 in words is "sixty-one billion, four hundred five million, six hundred four thousand, six hundred ten".