61115111054 has 8 divisors (see below), whose sum is σ = 91798765968. Its totient is φ = 30515522400.

The previous prime is 61115111051. The next prime is 61115111077. The reversal of 61115111054 is 45011151116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61115111051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21014747 + ... + 21017654.

It is an arithmetic number, because the mean of its divisors is an integer number (11474845746).

Almost surely, 2^61115111054 is an apocalyptic number.

61115111054 is a deficient number, since it is larger than the sum of its proper divisors (30683654914).

61115111054 is a wasteful number, since it uses less digits than its factorization.

61115111054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42033130.

The product of its (nonzero) digits is 600, while the sum is 26.

The spelling of 61115111054 in words is "sixty-one billion, one hundred fifteen million, one hundred eleven thousand, fifty-four".