61105572966 has 16 divisors (see below), whose sum is σ = 127524674304. Its totient is φ = 19482936264.

The previous prime is 61105572961. The next prime is 61105572971. The reversal of 61105572966 is 66927550116.

It is an interprime number because it is at equal distance from previous prime (61105572961) and next prime (61105572971).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61105572961) by changing a digit.

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, 221396866 + ... + 221397141.

It is an arithmetic number, because the mean of its divisors is an integer number (7970292144).

Almost surely, 2^61105572966 is an apocalyptic number.

61105572966 is an abundant number, since it is smaller than the sum of its proper divisors (66419101338).

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

61105572966 is a wasteful number, since it uses less digits than its factorization.

61105572966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442794035.

The product of its (nonzero) digits is 680400, while the sum is 48.

The spelling of 61105572966 in words is "sixty-one billion, one hundred five million, five hundred seventy-two thousand, nine hundred sixty-six".