61564140110 has 16 divisors (see below), whose sum is σ = 120889584432. Its totient is φ = 22386960000.

The previous prime is 61564140109. The next prime is 61564140133. The reversal of 61564140110 is 1104146516.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279836891 + ... + 279837110.

It is an arithmetic number, because the mean of its divisors is an integer number (7555599027).

Almost surely, 2^61564140110 is an apocalyptic number.

61564140110 is a deficient number, since it is larger than the sum of its proper divisors (59325444322).

61564140110 is a wasteful number, since it uses less digits than its factorization.

61564140110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559674019.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 61564140110 its reverse (1104146516), we get a palindrome (62668286626).

The spelling of 61564140110 in words is "sixty-one billion, five hundred sixty-four million, one hundred forty thousand, one hundred ten".