61101110994 has 64 divisors (see below), whose sum is σ = 152434759680. Its totient is φ = 15862216320.

The previous prime is 61101110951. The next prime is 61101110999. The reversal of 61101110994 is 49901110116.

It is a happy number.

It is a super-2 number, since 2×61101110994² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61101110999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887587 + ... + 953945.

It is an arithmetic number, because the mean of its divisors is an integer number (2381793120).

Almost surely, 2^61101110994 is an apocalyptic number.

61101110994 is an abundant number, since it is smaller than the sum of its proper divisors (91333648686).

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

61101110994 is a wasteful number, since it uses less digits than its factorization.

61101110994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68375.

The product of its (nonzero) digits is 1944, while the sum is 33.

The spelling of 61101110994 in words is "sixty-one billion, one hundred one million, one hundred ten thousand, nine hundred ninety-four".