61110511100 has 36 divisors (see below), whose sum is σ = 133194042744. Its totient is φ = 24336511680.

The previous prime is 61110511069. The next prime is 61110511103. The reversal of 61110511100 is 111501116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61110511103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1323347 + ... + 1368746.

Almost surely, 2^61110511100 is an apocalyptic number.

It is an amenable number.

61110511100 is an abundant number, since it is smaller than the sum of its proper divisors (72083531644).

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

61110511100 is a wasteful number, since it uses less digits than its factorization.

61110511100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692334 (or 2692327 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 17.

The spelling of 61110511100 in words is "sixty-one billion, one hundred ten million, five hundred eleven thousand, one hundred".